RM Class Book. Q §Q ftpightfl .J '■:-.' 2. COPYRIGHT BEPOI posit. Geography of Oklahoma CHAS.'N. GOULD, Ph. D. PROFESSOR OF GEOLOGY THE STATE UNIVERSITY OF OKLAHOMA DIRECTOR OKLAHOMA GEOLOGICAL SURVEY 1909 BUNN BROTHERS , ARDMORE, OKLA. /*> r^f .(r C&k/j Copyright, 1909 BY CLINTON ORRIN BUNN ®mv-'Pi\ CiA'244 533 JUL 29 1909 *7-^W PREFACE. Very) little has been written on the geography of Okla- homa. At the time when this text was prepared, Ok- lahoma had been a state less than two years. Most county lines and county seats were established with statehood. While certain geographical features, such as rivers, moun- tains, rocks, and climate are permanent, others, like po- litical boundaries,' cities and government, often change rapidly. This is particularly true in a. new state like ours. Since statehood a number of county seats have been changed and others will probably be changed before the book leaves the press. For the most part, the subject matter of this volume is based on the writer's personal experience, gathered during the past fifteen years, while doing geological work in the various parts of the State. The work of other investi- gators has been consulted, however, where occasion re- quired, particularly the publications of Mr. Joseph A. Taff of the United States Geological Survey, who has spent a number of years in eastern Oklahoma. This book is intended primarily for students in the grades, although it is believed that until a more compre- hensive text is written, the facts contained may be use- ful for the high school or even for more advanced work. The primary thought has constantly been kept in mind, however, that many people will never learn more of the geography of Oklahoma than is contained in this volume. For that reason, the attempt has been made to combine simplicity of style with briefness and accuracy of state- ment. The greater part -of— the illustrations are from photo- graphs taken by the author. Pierce Larkin and E. Z. Carpenter prepared the drawings. Charles N. Gould. Norman, Okla., May, 1909. Ranj. H.Ntll, A Co,-. N.« I] , l| M.n CONTENTS CHAPTER I. Pages Location and Boundaries. — Location of Oklahoma, Boun- daries, Area, Government Maps 1-4 CHAPTER II. Topography. — The Great Plains, The Highest and Lowest Points, Topographic Regions, Ozark Mountains, Ouach- ita Mountains, Arbuckle Mountains, 'Wichita Mountains, Arkansas Valley Region, Red River Valley Region, Sandstone Hills Region, Red'beds Plains Region, Gyp- sum Hills Region, High Plains Region 5-24 CHAPTER III. Geology. — Kinds of Rocks, Geologic Periods, Sedimentary Rocks, Igneous Rocks, Oldest Rocks in Oklahoma, Ori- gin of Arbuckle and Wichita Mountains, Carboniferous Rocks, The Mississippian, The Pennsylvanian, The Per- mian-Triassic and Jurassic Times, Cretaceous Rocks, Tertiary Rocks, Quaternary Rocks 25-42 CHAPTER IV. Underground Water. — Disposal of Rainfall, Underground Water, Movement of Underground Water, Springs, Mineral Springs, Wells. Artesian Wells , 43-49 CHAPTER V. Drainage. — Origin of Streams, Chief Streams of Oklahoma, Character of Oklahoma Streams, Drainage Basins, Ar- kansas River, Grand River, Verdigris River, Poteau River, South Canadian River, North Canadian River, Cimarron River, Salt Fork River, Washita River, Red River, Lakes 50-62 viii CONTENTS CHAPTER VI. Pages Weather and Climate. — Weather, Temperature, Air, Wind, Humidity, Precipitation, Weather Bureau, Cyclones, Cli- mate, Temperature, Humidity, Rainfall, Oklahoma Cli- mate 63-72 CHAPTER VII. Vegetation and Animal Life. — Flora and Fauna, Flora of Oklahoma, Trees, Grasses, Mistletoe, Fauna of Okla- homa, Wild Animals, Birds, Snakes and Lizards, Tur- tles, Do-not-kill Snakes, Fishes 73-82 CHAPTER VIII. Location of Indian Tribes. — Original Owners of Oklahoma, Homes of the Five Civilized Tribes, Migration of Five Civilized Tribes, Settlement of Friendly Indians in Ok- lahoma, Mode of Life 1 83-90 CHAPTER IX. Early History and Settlement. — Old Oklahoma, Agitation Leading to the Opening of Oklahoma to Settlement, Op- ening of Oklahoma, No Man's Land, Other Reserva- tions, The Cherokee Strip, Greer County, The Kiowa County, Indian Territory, Work of Dawes Commission, Admission of Oklahoma, Character of Settlers 91-101 CHAPTER X. Education. — Free Education, School Laws-, State Superin- tendent, Country Schools, City Schools, State Schools, Church Schools, Religious Denominations.. 101-107 CHAPTER XL Government. — Constitution, Legislative Department, Execu- tive Department, Judicial Department, Local Govern- ment 108-111 CONTENTS ix CHAPTER XII. Pages Agricultural Resources. — Soil Areas, Residual Soil, Trans- ported Soil, Corn, Wheat, Oats and Other Small Grain, Broom Corn, Cotton, Alfalfa, Prairie Hay, Fruits, Po- tatoes, Vegetables, Minor Crops, Stock Raising, Cattle, Horses, Hogs, Dairying, Poultry, The Farmer's Need. .112-125 CHAPTER XIII. Mineral Resources. — Variety of Minerals in Oklahoma, The Fuels, Coal, Oil, Gas, Asphalt, Salt, Gypsum, Lead and Zinc, Building Stone, Clay, Sand 126-143 CHAPTER XIV. Manufactures. — Need of Factories, Clay Products, Port- land Cement, Gypsum Plaster, Flour and Oil Mills, Other Manufacturing Plants, Future of Manufacturing Industries of Oklahoma 144-149 CHAPTER XV. Commerce. — Land and Water Transportation, Oklahoma Rivers, Railroads 150-153 CHAPTER XVI. Public Land Surveys. — Initial Point, Principal Meridian and Range Lines, Base Line and Township Lines, Con- gressional Township, Sections, Corner Stones, Cimarron Meridian 154-160 CHAPTER XVII. Population, Cities and Counties. — Population and Emmi- gration, Growth of Cities, Oklahoma Cities, Oklahoma City, Muskogee, Guthrie, Shawnee, Enid, Ardmore,_Mc- Alester, Chickasha, Tulsa, Lawton, El Reno, Durant, Sapulpa, Bartlesville, Ada, Vinita, Norman, Stillwater, Alva, Edmond, Weatherford, Counties 161-173 Pronouncing Vocabulary 174-175 Index 176 LIST OF ILLUSTRATIONS The Washita River Gorge Frontispiece Fig. Page 1. Products Grown on a Single Farm in Oklahoma 1 2. Topographers at Work in the Field 3 3. Topographic Regions of Oklahoma •.. 7 4. Spring and Milkhouse in Eastern Oklahoma 8 5. Rocks on Edge 10 6. Turner Falls at a Distance of One Mile 11 7. Near View of Turner Falls 12 8. The Washita Gorge Showing Rock Crusher 13 9. Rock Cut the R. R. Blasted Out of the Rocks 14 10. Saddle Mountain 15 11. Gypsum Hills, Blaine County 20 12. Lake on High Plains 22 13. Fossil Crinoid Stems 25 14. Fossil Camarocrinus 26 15. Conglomerate Rock 27 16. Boulders of Oklahoma Granite near . Tishomingo 29 17. Limestone on Edge, Oil Creek, Oklahoma 30 18. Three Views of White Mound near Dougherty, Oklahoma 32 19. Camp of Geology Students in the Arbuckle Mountains.... 33 20. Folded Rocks 34 21. Rocks on Edge 35 22. Price's Falls, Arbuckle Mountains 36 23. Cross-section of the Arbuckle Mountains Before Erosion.. 37 24. Cross-section of the Arbuckle Mountains at the Present Time 37 25. Spring at Old Fort Arbuckle 45 Wall Built in 1852. 26. Mineral Springs at Bromide 46 27. Well Drilling Machine 47 28. An Artesian Well at Lehigh 48 29. Maps Showing the Drainage Basins of Oklahoma 52 30. Valley of the Arkansas River in Kay County 53 31. A Team Crossing the Canadian River in a Flood 56 32. The Cimarron River, Showing Low Sandy Banks 58 xii LIST OF ILLUSTRATIONS Fig. Page 33. Limestone in Washita Gorge 59 34. View on Little River, Eastern Oklahoma 60 35. Ferry Boat on Kiamitia River 61 36. An Artificial Lake near Newkirk 61 37. A Cyclonic Area Crossing Oklahoma 66 38. Chart Showing the Monthly Temperature of Oklahoma.. 68 39. Chart Showing the Mean Annual Precipitation of Ok- lahoma 69 40. Chart Showing the Average Monthly Rainfall in Okla- homa 70 41. Upland Timber in Eastern Oklahoma 74 42. A Sawmill in Eastern Oklahoma 75 43. Piles of Cross 'lies and Lumber at Bennington 76 44. Rail Fence and Deadened Timber 77 45. A Dwarf Elm o:i the High Plains 78 46. Cottonwood and Elm Timber along a Stream in Western Oklahoma 79 47. Buffalo Herd in the Forest Reserve in the Wichita Mountains 80 48. A Map Showing the Location of Indian Tribes in Ok- lahoma Before the Settlement of the Whites 85 49. Wichita Grass Houses 86 50. Sac and Fox Bark Houses 87 51. Conical Tepees of the Comanches 88 52. Indian Papoose 89 53. The Opening of Oklahoma 92 54. Indian Cabin in Eastern Oklahoma 96 55. Indian Cabin in the Timber 97 56. Sod House in Western Oklahoma 98 57. A Claim Shanty in Western Oklahoma 99 58. Breaking Ground in the Timbered Country 100 59. Modern Oklahoma Farm House 100 60. Stone School House in Kay County 103 61. Science Hall, State University 104 62. Buildings at the A. & M. College 105 63. Corn Awaiting Market 113 64. Wheat Raising in Oklahoma 114 65. Threshing Wheat in Northern Oklahoma 115 66. Hauling Broom Corn to Market 116 67. Cotton Going to Market 116 68. A Train Load of Cotton 119 69. Cotton Baled on Board Cars 119 70. A Fruit Farm in Central Oklahoma 120 71. Cattle on the Plains 122 72. Map Showing the Mineral Products of Oklahoma 127 73. A Coal Mine at Midway 128 LIST OP ILLUSTRATIONS xiii Fig. Page 74. Coal Mine at Lehigh 129 75. Oil Well Derricks at Cleveland 130 76. Oil Gushing from a New Well 131 77. A Tank Farm Near Copan 132 78. A Train Load of Oil Leaving Bartlesville 133 79. An Asphalt Mill and Mine Near Sulphur 134 80. Streets of Ardmore Paved with Oklahoma Asphalt 135 81. Salt Plains of Alfalfa County near Cherokee 136 82. Zinc Mines near Miami 137 83. Two Views Showing the Effect of a Blast in a Lime- stone Quarry at Crusher, Oklahoma 139 84. Limestone Posts in Kay County 140 85. Pioneer Telephone Building in Oklahoma, Built of Ok- lahoma Marble 141 86. Ledge of Glass Sand at Bromide 142 87. Portland Cement Mill at Dewey, Oklahoma 145 88. Gypsum Ledges in Western Oklahoma... 146 89. Cotton Oil Mill at Madill 147 90. Interior of a Cotton Mill at Guthrie 148 91. Zinc Smelter at Bartlesville 148 92. Diagram of a Township Showing Each of the Subdi- visions 156 93. Diagram Showing How a Section May Be Divided 157 94. A Modern Office Building at Oklahoma City 163 95. Court House at Oklahoma City 164 96. Masonic Temple at McAlester 165 97. Busby Hotel at McAlester 166 98. Smoke from Burning Oil 167 99. A Bird's Eye View of Sapulpa Showing Burning Oil in the Distance 168 GEOGRAPHY OF OKLAHOMA CHAPTER I. LOCATION AND BOUNDARIES. Location of Oklahoma, Oklahoma is situated a little south of the center of the United States. Oklahoma City, which, is not far from the center of Oklahoma, is about 200 miles south of the geographical center of the nation. It is about 450 miles north of the Gulf of Mexico, 800 miles south of Canada, 1,300 miles from New York and almost an equal distance from San Francisco. Fig. 1. Products Grown on a Single Farm in Oklahoma 1 2 GEOGRAPHY OF OKLAHOMA Although on regional maps of the United States Okla- homa is classed as the most northwestern of the southern states, there is no state in the Union which combines greater variety of soil, climate, crops, and inhabitants. Upon a single farm can be seen products that grow in the states from Minnesota to Florida and from Maine to California. (Figure 1 shows the products grown on a single- farm.) In character of inhabitants and variety of crops and industries the southern part of Oklahoma re- sembles the southern states; northern Oklahoma is in the same class with such states as Kansas, Iowa, and Illinois ; western Oklahoma has all the characteristics of a far western state. Boundaries. The boundaries of Oklahoma have been determined by the boundaries of the older states which touch it. Red River on the south, which separates Okla- homa from Texas, is the only natural boundary. Three straight lines form the eastern boundary and mark off Oklahoma from Missouri and Arkansas. The line be- tween Oklahoma and Missouri was originally drawn from the mouth of the Kansas River at Kansas City south to the parallel of 36° 30'. The line from the Arkansas River south to Red River was drawn from a point 100 paces west of old Fort Smith, thus separating Arkansas from the old Choctaw Nation. The third straight line was drawn diagonally northwest and southeast from Fort Smith to the southwest corner of Missouri. The northern boundary of Oklahoma is formed by the 37th parallel of latitude, which is also the southern line of Kansas and Colorado. The extreme western line of the state lies in longitude 103° west and separates Oklahoma from New Mexico. The main part of the state, however, extends LOCATION AND BOUNDARIES 3 only to the 100th meridian, the eastern line of the Pan- handle of Texas. The southern line of the three western counties is the parallel of 36° 30', the same as the south- ern line of Missouri. Area. The greatest distance across the state is from east to west along the northern boundary, and measures 467 miles. The greatest distance from north to south along the eastern line is 230 miles. Oklahoma contains Fig. 2. Topographers at Work in the Field about 70,430 square miles, or 45,075,200 acres of land — enough to make 381,720 farms of 160 acres each. Government Maps. That part of Oklahoma which was formerly Indian Territory, as well as a part of the Ter- ritory of Oklahoma, has been surveyed and mapped by the United States Geological Survey. These maps have been carefully prepared and show all the streams, hills, and valleys, as well as the location of the roads, rail- roads, cities, and houses that were present when the map was made. These maps are known as topographic sheets and represent from 800 to 1,000 square miles each. (Figure 2 shows a party of students from the State Uni- 4 GEOGRAPHY OF OKLAHOMA versity preparing topographic maps in the field.) The government maps may be purchased of the Director of the Survey, at Washington, for five cents each, or three dollars per hundred. Folios, which contain a geologic map showing the location of the various formations and the different valuable minerals, have been published of the Atoka, Ooalgate, Tishomingo, Tahlequah and Musko- gee sheets. The folios are sold for twenty-five cents each. A good county map of Oklahoma may be ob- tained by senlding twelve cents to the Superintendent of Documents at Washington, D. C. These maps contain the very latest information on the subjects treated, and are sold practically at cost. Students are urged to pur- chase a state map and a topographic sheet of their home region. QUESTIONS AND EXERCISES 1. Locate Oklahoma in the United States. 2. How far is Oklahoma from New York? From San Fran- cisco? From Canada? 3. Bound Oklahoma. 4. What river forms the southern boundary of Oklahoma? 5. How were the three straight lines located which form the eastern boundary? 6. "What parallel forms the northern boundary? 7. What two meridians form the western boundary? 8. What is the greatest distance across the State from east to west? From north to south? 9. What is the area of Oklahoma in square miles? In acres? 10. How many 160-acre farms would it contain? CHAPTER II. TOPOGRAPHY. The Great Plains. Oklahoma is located in that part of the United States known as the Great Plains. The Great Plains slope from the Rocky Mountains on the west to the Mississippi River on the east. The Plains appear to be nearly level, but in fact uear the mountains the eleva- tion is more than a mile above the ocean. The Highest and Lowest Points. The highest point in Oklahoma is on Black Mesa in the extreme northwestern corner of Cimarron County, the most western county in the state. Black Mesa is a flat-topped hill made up of black lava rock which was long ago poured out from a volcano. It is about 4,800 feet above sea level. Prom this point the surface of Oklahoma slopes gradually to the east. The average slope is about eight feet to the mile, which is so slight that one can hardly see that the country slopes at alii. The lowest points in the state are along the eastern line where the two largest rivers flow from Oklahoma into the state of Arkansas. The Arkansas River flows from Oklahoma at Port Smith, and the Red River at the extreme southeast corner of the state. At these places the elevation above sea level is between 300 and 400 feet. The greater part of Oklahoma consists of grass-covered "rolling prairie," with occasional ranges of hills trend- ing usually north and south. In the southern and the 5 6 GEOGRAPHY OF OKLAHOMA eastern parts of the state there are a number of ranges and groups of hills, some of which rise to the dignity of mountains. These hills and mountains are usually covered with timber. Between the hills are areas of rolling and level country, sometimes timbered, sometimes prairie. Topographic Regions. The unevenness of land surfaces is called Relief, or Topography. A part of the country containing the same general form's of relief is called a Topographic Region. Oklahoma may be divided into the following ten Topographic Regions : The Ozark Mountains. The Ouachita Mountains. The Arbuckle Mountains. The Wichita Mountains. The Arkansas Valley Region. The Red River Valley Region. The Sandstone Hills Region. The Redbeds Plains Region. The Gypsum Hills Region. The High Plains Region. It must be understood that there is no sharp line of division between these various regions in Oklahoma. In most instances one region grades insensibly into another, so that it is often impossible to say just where one region ends and another begins. For instance, the exact line of separation between the Arkansas Valley region and the Sandstone Hills region can not be determined. In studying the different regions turn to the topographic map, Figure 3, and locate each region. Ozark Mountains. The Ozark Mountains of Oklahoma include only a small portion of this uplift which oc- cupies a great part of southern Missouri. In northern & 8 GEOGRAPHY OP OKLAHOMA Arkansas the same range is known as the Boston Moun- tains. There are no very high peaks or ridges in these mountains, but the region is a high level table-land, covered with a floor of white limestone. This is the rock which contains the lead and zinc at Joplin in southern Missouri. The general level of this plateau in Oklahoma is about 600 feet above the lowlands, or about 1,100 feet above sea level. The Arkansas River flows south of the mountains and the Grand west of them. A Fig. 4. Spring and Milkhouse in Eastern Oklahoma number of small streams rise on the flat upland and flow south and west into the Arkansas or the Grand. The largest of the streams flowing south into the Arkansas are Lees Creek, Sallisaw Creek, Vian Creek, and the Illi- nois River. Those flowing west into the Grand are Clear, Spring, Saline and Spavinaw creeks. All these streams and their many branches have cut deep and narrow val- leys in the mountains, forming steep and rocky cliffs and bluffs. Some of the finest scenery in Oklahoma is found along these valleys. The mountains are in most places TOPOGRAPHY 9 densely wooded. Oak, hickory, elm, walnut and persim- mon trees are most common. In the Ozark region there are thousands of springs. Some of the purest water in the United States comes from these springs. Tahlequah, the old Cherokee capital, is located on the site of strong springs and such towns as Wauhillau, Stilwell, and Westville all have fine springs. There is scarcely a farm house in the whole region that does not use spring water. (Figure 4 shows one of these springs and a milk house.) Eureka Springs, Siloam Springs, Electric Springs, and Monte Ne are health re- sorts in Arkansas located by springs of the same kind as those in Oklahoma. Ottawa, Delaware, Adair, Chero- kee and parts of Sequoyah, Mayes, and Craig counties are located in the Ozark Mountains. The largest towns are Tahlequah, Miami, Westville and Stilwell. Ouachita Mountains, The name Ouachita (Wa-she-taw) Mountains is often used to include a number of chains and groups of mountains located in southeastern Okla- homa and southwestern Arkansas. The group of moun- tains as a whole extends from near Little Rock, Arkansas, westward nearly to Atoka, Oklahoma, a, distance of about 200 miles. Only the western half of the group is in Oklahoma. The Ouachita Mountains in Oklahoma consist of a great many long narrow ridges composed of sandstone stand- ing on edge. These ridges are sometimes two thousand to three thousand feet above sea level. They lie parallel to each other, and usually extend northeast and south- west, and are separated by deep and narrow valleys. Some of the largest ridges of the Ouachitas are the Kia- mitia, Black Pork, Seven Devils, Winding Stair, Pine, and 10 GEOGRAPHY OF OKLAHOMA Jack Fork mountains. Poteau River flows across the northern part of the group and Mountain Fork, Little River, Glover Creek, Kiamitia River and McGee Creek rise in the mountains and flow south. In general the mountains are well wooded, including some valuable forests of pine and oak. Some prairie land is found in the valleys. The Ouachitas in Oklahoma include southern LeFlore, Latimer and Pittsburg coun- Fig. 5. Rocks on Edge ties, eastern Atoka and northern Pushmataha and Mc- Curtain counties. There are no large towns in the moun- tains. This is the roughest part of Oklahoma and fewer people live here than in any other section of the State. The land is not suitable for agricultural purposes and has few mineral deposits. Arbuckle Mountains. The Arbuckle uplift occupies an area 60 miles long and 20 miles wide in southern Okla- homa. Only that part of the uplift which lies west of 11 Fig. 7. Near View of Turner Falls 12 TOPOGRAPHY 13 the Washita River is usually spoken of as the Arbuckle Mountains, but the name may well be applied to the entire range of rocky hills that extends as far east as Wapa- nucka. The rocks are largely massive ledges of lime- stone which have been upheaved, broken, folded and twisted until they are highly inclined, standing on edge as in Fig. 5. There are occasional peaks and rounded hills composed of granite. The granite is exposed in a Fig. 8, The Washita Gorge Showing Rock Crusher. large area north and northeast of Tishomingo, and in the East Timbered Hills and West Timbered Hills west of Washita River, southwest of Davis. The highest peaks are only 700 feet above the surrounding plain or 1,400 feet above sea level. There are many strong flowing springs in the Arbuckles, and a number of picturesque waterfalls. Figs. 6 and 7 are two views of Turner Falls. Sulphur and Bromide are two health resorts which have grown up around mineral springs near the edge of the mountains. Such creeks as 14 GEOGRAPHY OF OKLAHOMA Honey, Palls, Rock, Canyon, Pennington, Blue and Mill are fed largely by springs. The Washita River flows across the mountains in a deep canyon which it has cut in the lime- stone rocks, as shown in Fig. 8. The Santa Fe Railroad follows the canyon of the Washita in a roadbed blasted out of the solid rock as in Fig. 9. The slopes of the hills are usually covered with timber ; the limestone-covered uplands are mostly prairie. There are no large towns in the mountains. The Ar- buckles include parts of Murray, Garter, Pon- totoc and Johnston counties. Wichita Mountains. The Wichita Moun- tains in southwestern Oklahoma extend from Fig 9. Rock Cut. The Railroad Lawton to Granite, a Blasted out of the Rocks. ' distance of 60 miles. The greater part of the Wichitas consists of scattered ranges, groups, and sharp, jagged peaks of granite and porphyry. The peaks are only the tops of buried moun- TOPOGRAPHY 15 tains projecting above a sea of plain. Mt. Scott, ten miles northwest of Lawton, is the highest peak. It is a round mountain of granite 1,200 feet above the level of the plain and 2,400 feet above sea level. Some other promi- nent peaks are Mount Sheridan, Mount Baker, Saddle Mountains (see Fig. 10), Tepee Mountain, Devil's Can- yon Mountain and Headquarters Mountain. There is a little timber in the valleys and on some of the slopes in Fig. 10. Saddle Mountain Photograph by Dedrick, Talog-a, Okla. the eastern part of the range, but most of the granite peaks have no vegetation. There are a number of strong springs among the moun- tains. Most of the larger creeks, such as Medicine Bluff, Rainy Mountain, Blue Beaver, Cache and others, head in mountain springs. The Wiehitas are located in Comanche, Kiowa, Jackson and Greer counties. Lawton, Granite and Snyder are the largest towns near the mountains. Arkansas Valley Region lies along the Arkansas and 16 GEOGRAPHY OF OKLAHOMA Canadian rivers between the Ozark and Ouachita regions, extending southwest till it touches the eastern end of the Arbuckle uplift. The western limit where it merges with the Sandstone Hills region is poorly denned. The rocks consist of massive ledges of sandstone and shale, which have been thrown up by some internal force into immense folds, and afterward worn down by water, wind and frost, leaving a number of groups and ranges of high hills, some of which are more than 2,000 feet above sea level. The most prominent elevations, such as Cav- inal, Sansbois, Sugar Loaf, Potato, Wild Horse, Rattle- snake, Kiowa and Beaver, are known locally as moun- tains. Between these various elevations are broad fertile valleys. The region is mostly timbered, although prairie land is found in the level country. This is the great coal country of Oklahoma. More than half the coal in the state lies in this region. For this reason it is destined to become one of the wealthiest parts of the state. All or part of Sequoyah, LeFlore, Haskell, Muskogee, Pittsburg, Mcintosh, Latimer, Atoka and Coal counties are included in the Arkansas Valley region. A number of towns of considerable size are located in this region, the largest of which are McAlester, Coalgate, Lehigh, Wilburton, Po- teau, Spiro, Sallisaw, Bokoshe, Stigler, Eufaula and Che- cotah. Red River Valley Region. This region includes that portion of Oklahoma which lies north of Red River and south of the Ouachita and Arbuckle Mountains. It ex- tends west to the Redbeds Plains south of the western end of the Arbuckles and grades into them. This is the low- est topographic region in Oklahoma, the average eleva- tion above the sea being not more than 600 feet. A num- TOPOGRAPHY 17 ber of streams which rise in the mountains to the north and flow south across the region have carved out broad valleys. Little River, Kiamitia, Boggy, Blue and Washita rivers are the largest of these. The rocks are soft sand- stone and shales, interstratified with two ledges of rather hard limestone, in which stream erosion has carved out low hills, and, in places, steep cliffs. The sandstone and shale exposures are usually wooded; the limestone areas are often prairie. Part or all of McCurtain, Choctaw, Bryan, Pushmataha, Atoka, Johnston, Marshall, Love and Carter counties lie in the Red River Valley region. The chief towns in the region are Ardmore, Marietta, Madill, Durant, Caddo and Hugo. Sandstone Hills Region. The Sandstone Hills region includes that part of Oklahoma extending west from the Ozark Mountains and the Arkansas Valley region about as far as the main line of the Santa Fe Railroad, and from Kansas south to the Arbuckle Mountains. Through- out this region the rocks, which consist of alternating strata of soft shales and hard sandstones, either lie level or dip slightly to the west. The slope of the country is to the east. Erosion has worn away the soft shales and left the hard sandstone standing as prominent hills, which often form continuous ridges extending in a general north- east-southwest direction for many miles. In many cases, however, isolated buttes stand out on the level plain. The steep slope of all these hills is to the east, while the west- ern slope is long and gentle. Some prominent ranges and peaks that have received distinctive names are Concharty Mountains, Council Hill, Bald Hills, Twin Knobs, Outlaw Mountain, Mount Inola, Catoosa Hills, Scaly Bark Moun- tain, Osage Knob, Chimney Hill, Shawnee Hills and 18 GEOGRAPHY OF OKLAHOMA Claremore Knob. Flat prairie lands and wooded stream valleys occur between the hills. Many large rivers cross this region, including Arkansas, Verdigris, Grand, the three Canadians and Cimarron, with their numerous trib- utaries. In the northern part of this region are the Flint Hills, which occupy western Osage and eastern Kay counties. The name comes from a number of ledges of flint which occur in heavy ledges of limestone. The flint is harder than the limestone and other rocks which form the hills. Where everything else has been worn away the flint re- mains, covering the ground. In Kansas the Flint Hills are higher and the flint more common than in Oklahoma. The rougher parts of Sandstone Hills region, particu- larly the steep slopes, as well as the valleys, are forested ; the intervening plains are grass-covered. This region in- cludes all or part of the following counties: Craig, No- wata, Washington, Rogers, Mayes, Wagoner, Tulsa, Mus- kogee, Okmulgee, Mcintosh, Pittsburg, Coal, Hughes, Pontotoc, Garvin, Seminole, Pottawatomie, McClain, Cleveland, Lincoln, Okfuskee, Creek, Payne, Logan, Noble, Osage and Kay. This part of Oklahoma contains not only the greatest oil and gas fields in the State, but vast deposits of coal, clay and limestone. It is destined to become the great manufacturing region of Oklahoma. Many growing towns are located in this part of the State, the most im- portant of which are Muskogee, Shawnee, Tulsa, Bartles- ville, Vinita, Okmulgee, Holdenville, Pawhuska, Sapulpa, Wewoka, Okemah, Wagoner, Claremore, Pryor Creek, Ada, Chandler, Stillwater, Nowata and Pawnee. The soil is very fertile and a large variety of crops are raised. TOPOGRAPHY 19 Redbeds Plains Region. The Redbeds Plains extend west from the Sandstone Hills region and the Arbuckle Mountains to the Gypsum Hills, and from Kansas south to Red River. The southwestern part of the region en- tirely surrounds the Wichita Mountains. The rocks are known as Redbeds ; they are largely soft clay shales, brick- red in color, with a few ledges of soft sandstone. The shales are so red that the water in the streams is colored blood-red. The surface is rolling. Steep bluffs are rare and high hills are unknown. Several rivers, Salt Pork, Cimarron, North Canadian, South Canadian, Washita and Red, flow across this region from northwest to southeast. These streams have carved broad and shallow valleys in the almost level plain. The south bluffs of these rivers for the greater part of their course in this region are cut up by small canyons and gulches, while the slope north of the rivers is unbroken and is often covered by sandhills. The high divides are remnants of the old plains surface, and their slopes to the east are so gentle as to be un- noticeable. One may often travel across the country for 20 miles along some lines without ascending or de- scending 20 feet from the general level. The level plain is very fertile. There is very little waste land. It is the great wheat, alfalfa, cotton and corn coun- try of Oklahoma. Except along the streams, where timber is sometimes found, this region is prairie. It includes all or part of the following counties: Kay, Grant, Alfalfa, Woods, Major, Garfield, Noble, Logan, Kingfisher, Blaine, Oklahoma, Canadian, Cleveland, McClain, Grady, Caddo, Garvin, Stevens, Jefferson, Comanche, Tillman, Kiowa, Greer and Jackson. Many of the largest towns in the State are in this region, including Oklahoma City, Guth- 20 GEOGRAPHY OF OKLAHOMA rie, El Reno, Enid, Lawton, Chickasha, Norman, King- fisher, Alva, Newkirk, Ponca and Blackwell. Gypsum Hills Region. A great part of western Okla- homa is occupied by the Gypsum Hills region. The rocks here are red clay and shale as in the Redbeds Plains, but in this part of the State the red shales also contain hard members of gypsum and dolomite. These harder members weather out, forming high hills, cliffs Fig. 11. Gypsum Hills, Blaine County and out lying buttes, so that the topography is more broken than in the Redbeds Plains. There are three lines of Gypsum Hills in western Okla- homa. The first line, the so-called "Gyp Hills" of the cowboy, extends from Canadian County northwest to the Kansas line, crossing Blaine, Major, Woodward, Harper and Woods counties. These hills are 150 or 200 feet high, capped with two ledges of massive white gypsum 15 to 20 feet thick (shown in Fig. 11) and rise like a wall TOPOGRAPHY 21 above the Redbeds Plains to the east. Most of the gyp- sum plaster mills in Oklahoma are located along this line of hills. The second line of Gypsum Hills lies parallel to the line just described and is 40 to 50 miles further southwest. The highest hills are in Caddo, Washita, Custer, Dewey and Ellis counties. In this section of the State the hills are usually low white-topped, rounded gyp- sum knolls, which stand out on the plain or gentle slopes or along shallow streams. The third line of Gypsum Hills occurs in Jackson, Greer and Beckham counties. The ledges of gypsum are from 10 to 20 feet thick. Some of the hills consist of long, steep cliffs and some of rounded mounds. There are a number of hills in this region which are not formed by gypsum at all, but by hard ledges of dolomite or sandstone. For instance, the Red Hills be- tween Geary and Watonga, and the Caddo County Buttes southwest of Bridgeport, are formed by a heavy ledge of dolomite. The hills in northern Beckham, eastern Roger Mills and western Washita, Custer and Dewey counties are formed by heavy ledges of sandstone. Several large streams, including Salt Fork, Cimarron, North Canadian, South Canadian, Washita and branches of Red River flow southeast across the Gypsum Hills. These streams have, in most places, cut deep, steep-sided valleys among the gypsum and sandstone ledges, and, in many places, have formed conspicuous cliffs and bluffs. This is a fertile re- gion, as gypsum and dolomite are both good fertilizers. Corn is raised in all the counties; cotton in the southern part, and wheat in the northern section. The following counties are all or in part included in the Gypsum Hills region: Woods, Harper, Ellis, Woodward, Major, Blaine, Dewey, Canadian, Caddo, Custer, Roger Mills, Beckham, 22 GEOGRAPHY OF OKLAHOMA Washita, Greer and Jackson. The chief towns are Wood- ward, Taloga, Cheyenne, Thomas, Watonga, Arapaho, Weatherford, Clinton, Elk City, Cordell, Sayre and Man- gum. High Plains Region. The High Plains includes the high- est part of the State and lie west of the Gypsum Hills and at a higher level. This region is a part of that vast level tract lying east of the base of the Rocky Mountains and extending from Canada to Mexico. In Oklahoma this Fig. 12. Lake on the High Plains plain slopes from an altitude of 4,800 feet in western Cimarron County to a little more than 2,000 feet in Wood- ward and Ellis counties. In this plain Cimarron River and Beaver Creek have cut their broad, shallow valleys. A number of smaller creeks are at work dissecting the level uplands. Large areas remain, however, which ap- pear to be as level as a floor and on which the only drain- age is into broad, shallow depressions or lakes, some- times called "buffalo wallows." One of these lakes is shown in Fig. 12. Until the last few years this has always been a cattle country. Recently the region has been settled TOPOGRAPHY 23 and crops, particularly kafir corn, milo maize, broom corn and sorghum, are raised. The soil is very fertile, but lack of rainfall sometimes prevents the crops from ma- turing. There is no timber except an occasional lone elm, cottonwood or willow along a stream. The whole coun- try is covered with a soft carpet of buffalo grass, Cimar- ron, Texas, Beaver and parts of Harper, Ellis and Roger Mills counties are included in this region. The largest towns are Guymon and Beaver. QUESTIONS AND EXEECISES 1. Locate the Great Plains. 2. In what part of the Great Plains is Oklahoma located? 3. Where is the highest point in Oklahoma? 4. What is the average slope across the State? 5. What is the elevation of the lowest points in Oklahoma? 6. In what part of Oklahoma is the surface level? 7. Where are the mountains located? 8. Define Belief; Topographic Eegion. 9. Name and locate the different topographic regions in Okla- homa. 10. What is the character of the topography in the Ozark Mountains? 11. \vnat kinds of rocks are found? 12. What is the average elevation? 13. What rivers flow near the mountains? 14. What creeks head in the mountains? 15. What is the character of the vegetation? Of the water? 16. Name the counties and cities in these mountains. 17. Apply questions 10 to 16 to the Ouachita, Arbuckle, and Wichita Mountains. 18. What is the character of the rocks in the Arkansas Valley Region? 19. Name the principal peaks. 20. What mineral is found in this region? 24 GEOGRAPHY OF OKLAHOMA 21. Name the counties and chief cities. 22. What streams cross the Red River Valley Region? 23. What is the character of the vegetation? 24. Name the counties and chief cities in the region. 25. Locate the Sandstone Hills Region. 26. What is the character of the rocks? 27. What streams cross the region? 28. Name the counties and chief cities. 29. Apply questions 25, 26, 27 and 28 to the Redbeds Plains Region, the Gypsum Hills Region, and the High Plains Region. 30. In what topographical region do you live? 31. What large streams, mountains, or hills are located near your home? CHAPTER III. GEOLOGY. Kinds of Rocks. Oklahoma has a great many kinds of rocks and a great variety of soils. In some parts of the State there are mountains made up of solid granite; in other places the rocks are largely sandstone or limestone. In certain counties the only hard rock is white gypsum; in other localities there are no hard rocks of any kind exposed on the surface. Fossils. In some of the rocks of the State fossils may be found. Fossils are the remains of animals and plants which were alive when the rocks were laid down. Certain kinds of fossils are found in the rocks of certain ages. Geologists tell the age of the rocks by the kind of fossils contained in them. Shells, something like our modern clams and oysters, tribolites which resemble the modern crayfish or crab, and various forms of corals and other sea animals, two of which are shown in Figs. 13 and 14, are found 25 Fig. 13. Fossil Crinoid Stems 26 GEOGRAPHY OF OKLAHOMA preserved as fossils in the limestone rocks of many of the counties. In the coal regions there are remains of the leaves, stems and trunks of the plants which formed the coal. In southern Oklahoma immense coiled shells are found, something like our modern snail — many of which are three feet in diameter. On the High Plains in the western part of the State there are bones of the rhinoceros, tiger, camel and other large beasts which are not now found in North America. Bones of the masto- don, the extinct elephant, are found in many places. Fig. 14. Fossils — Camarocrinus Geologic Periods. Geologists divide the history of the earth, since the time of the first fossils, into the following ten great divisions or periods. They are arranged in order of their age, the last named being the oldest. Quaternary Tertiary Cretaceous Jurassic Triassic Carboniferous GEOLOGY 27 Devonian Silurian Ordovician Cambrian Sedimentary Rocks. Rocks of these ages are some- times called sedimentary rocks because they were laid down as sediments in former oceans, and sometimes strati- Fig. 15. Conglomerate Rock fied rocks because they are composed of strata or layers lying one above another. By far the greater part of the sedimentary rocks belong to one of three classes : sand- stones, limestones or clays. Sandstones are composed of sand grains cemented together and are supposed to have been laid down along an old sea beach. Very coarse sandstone is called conglomerate, as shown in Fig. 15. 28 GEOGRAPHY OF OKLAHOMA Limestones ' are made up largely of petrified shells and other fossils and were deposited either in the deep sea or in shallower water where conditions were favorable. Clay is hardened mud, and was formed in still bays and seas. If the clay is in thin layers it is called shale. Some form of stratified rock, either sandstone, limestone or clay, is found in most places on the surface of the earth. Igneous Rocks. Below these sedimentary rocks lie ig- neous or fire-formed rocks. The most common forms are granite, porphyry, diorite, seyenite and gabbro. Boulders of Oklahoma granite are shown in Fig. 16. Igneous rocks form the original crust of the earth and underlie every- thing else. If a person should drill anywhere on the sur- face of the earth, he would come to the granite or other igneous rocks, provided he went deep enough. In some places, usually in mountain ranges, these rocks are ex- posed on the surface, but in most regions they are cov- ered with many thousands of feet of stratified rocks. In order to understand the story written in the rocks of Oklahoma, it is necessary to study the formations ex- posed on the surface in all parts of the State. We must also go far back in the world's history, back to Cambrian times, to the times of the very first stratified rocks, the time of the first fossils. Oldest Rocks in Oklahoma. The oldest stratified rocks exposed on the surface in Oklahoma are found in the Ar- buckle and Wichita Mountains. These rocks were laid down many millions of years ago, just how long ago no one knows, when all this country was an open sea. In these regions there are a number of formations composed of limestone, sandstone and shale, lying one above the other. The very oldest stratified rock in the State is known as 29 30 GEOLOGY 31 the Reagan Sandstone. It lies directly on the granite, which is .exposed as high peaks near the center of the mountain ranges. It is of Cambrian age. Above the Reagan is a very heavy ledge of limestone, the Arbuckle limestone, 6,000 to 8,000 feet thick, one of the heaviest ledges of limestone in the world. The upper part of the Arbuckle is Ordovician in age. Then comes the Simpson sandstone, 2,000 feet thick, and the Viola limestone, 800 feet thick, also of Ordovician age. Next is the Svlvan shale, then the Hunton limestone, which is of Silurian and Devonian age. A ledge of Hunton limestone standing on edge is shown in Fig. 17. Above the Hunton is the Wood- ford chert, probably of upper Devonian age. Figs. 5, 8, 9, 17, 18, 19, 20, 21, 33, 83 and 86 show the rocks of these various formations. All these formations were laid down in regular succes- sion in the long-gone prehistoric seas. Sometimes the country was raised — the land stood above water — and then it was eroded or worn away by the action of the elements. For the most part, however, the deposition of sediments was continuous, from the beginning of the Cambrian to the close of the Devonian age. During these times many animals lived, but they were all low forms of life. There were none of the higher forms, such as reptiles, birds or mammals, which were introduced at later geological periods. There were trilobites, corals, crinoids (Fig. 13), shells and bryozoa or sea-mosses in great numbers. Their skeletons have been preserved in the various formations as fossils. In the Hunton forma- tion alone more than 200 different species have been found, the greater part of which are brachiopods, a kind of shell. There are many places in the Arbuckle Moun- Fig. 18. Three Views of White Mound Near Dougherty, Okla. 32 GEOLOGY 33 tains where the fossils are as thick on the ground as acorns under an oak tree. Fig. 18 shows three views of "White Mound," a fossil-bearing locality of the Hunton limestone. Fig. 19 shows a party of geology students from the Uni- versity of Oklahoma, camped by the mountains, and Fig. 18 shows the same party collecting fossils at White Mound. Origin of the Arbuckle and Wichita Mountains. Dur- ing the next geological period, the Carboniferous, there Fig. 19. Camp of Geology Students in the Arbuckle Mountains was a series of great upheavals in many parts of North America. Large areas of land were raised above the ocean. The Appalachian Mountains in the eastern part of the continent and the Wichita and Arbuckle Moun- tains of Oklahoma were elevated at that time. There are a great many places in Oklahoma where the rocks of these mountains may be studied, but one of the best localities, and the one most easily reached by many people in the State, is that part of the Arbuckle Moun- 34 GEOGRAPHY OF OKLAHOMA tains along the Washita River between Davis and Ard- more. At this place one may find many fossils and see some very fine examples of folding and faulting, show- ing the effects of the terrific strains to which the rocks have been subjected. Fig. 20 shows rocks which have been folded, and Fig. 21 rock standing on edge. There are a number of waterfalls, the most noted of which are Turner's Falls (Figs. 6 and 7) and Price's Falls (Fig. - s ; ^^ S :■• ^ &L^k x -^'#% > >?^ Fig. 20. Folded Rocks 22), besides the Washita Gorge (Fig. 8), the "Burning Mountain" and other places of interest. The geological structure of the mountains is shown in Figs. 23 and 24. Fig. 23 represents a section across the Arbuckle Mountains during Carboniferous times after the rocks had been deposited and the dome had been elevated above the ocean, but before it had been eroded. At that time the Arbuckle Mountains stood up as a great ovaL dome sixty miles long, twenty miles wide and two miles GEOLOGY 35 high above the surrounding- plains. As soon as it had been raised out of the water, the agents of erosion — rain, running water, wind, frost, etc. — began to cut away the rocks and to wash them down into the seas. The process continued for a long period of time. In fact, it is still in operation. The higher rocks which formed the top of the dome have all been worn away, exposing the rocks underneath, until at the present time nothing remains Fig. 21. Rocks on Edge but the eroded stump of the old mountain, as shown in Fig. 24. In passing from the Washita River to the granite peak 700 feet high known as the East Timbered Hills, which forms the core of the mountains, one walks over the upturned edges of more than two miles of stratified rocks, including limestones, shales and sandstones. In ascending 700 feet in altitude one descends more than 10,000 feet geologically. Carboniferous Rooks. During Carboniferous times 36 GEOGRAPHY OF OKLAHOMA much of Oklahoma was under water and vast deposits of sedimentary rocks were laid down. The rocks of the Car- boniferous period are divided into the following series, the oldest being last named : Permian Pennsylvanian Mississippian The Mississippian. Rocks belonging to all of the three Fig. 22. Price's Falls, Arbuckle Mountains divisions of the Carboniferous are well exposed in Okla- homa. In the Ozark Mountains there is a formation 300 feet thick, composed largely of limestone, known as the Boone Chert, which is of Mississippian age. This is the rock which contains the lead and zinc. On passing west these Mississippian rocks pass beneath the surface and are covered by rocks of the next younger age, the Pennsyl- vanian. The Pennsylvanian. With the exception of the forma- GEOLOGY 37 tions exposed in the Ozark Mountain practically all the rocks in eastern Oklahoma are of Pennsylvanian age. They are the Coal Measures. At the time when these rocks were deposited there were vast areas of swamps and marshy lowlands in this region in which grew great number of ferns and trees, forming dense and heavy Fig. 23. Cioss-sections of the Areuckle Mountains Before Erosion T ^-M^. WaQhita R,vrr. Fig. 24. Cross-sections of the Arbuckle Mountains at the Present Time vegetation. This vegetation accumulated through the long years so that it finally formed thick deposits, which gradually changed into beds of coal. Many of the leaves, stems and trunks of these coal plants are now preserved in the rocks. If you examine a piece of coal you will probably find in it traces of leaves and stems of the coal plants. After a long period of accumulation the surface was submerged below the ocean and deposits of sand and 38 GEOGRAPHY OF OKLAHOMA mud were laid down, which, on hardening, formed sand- stone and shale. After a time the region was again ele- vated, other swamps and marshes were formed, vegetation grew once more and formed other accumulations which were changed into coal. This elevation and subsidence continued for a long time. Strata more than 15,000 feet thick were laid down in eastern Oklahoma. More than 20 veins of coal were formed, about 10 of which are thick enough to be worked. One of these veins extends from near Fort Smith, Arkansas, to Lehigh, Oklahoma, a dis- tance of 150 miles. Another one comes to the surface along a line running from Pittsburg, Kansas, into Okla- homa and south past Chelsea, Claremore, Catoosa, Broken Arrow and Henry etta to the Canadian River. The Penn- sylvanian rocks dip west and pass beneath the next younger rocks, the Permian Redbeds. The Permian. During Permian times, after the coal beds had been laid down, the character of the deposits in Oklahoma changed. The Redbeds which occupy so much of western Oklahoma were probably deposited in shallow seas or in salt lakes something like the Red and Caspian seas today. The Redbeds consist of a great mass of red clay shales, of unknown thickness, which covers an area extending from Kansas across western Oklahoma and northwest Texas to New Mexico. Besides the red shales there are a few ledges of white gypsum, red sandstone and gray dolomite, which is a kind of limestone. It is the unequal weathering of the ledges of hard gypsums, sandstones and dolomites that makes up the Gypsum Hills, the Red Hills and other hills of western Oklahoma. Among the Redbeds there are beds of salty shale, and the water which runs across these salty beds issues as salt GEOLOGY 39 springs. There are very few fossils of any kind in the Redbeds and little indication of coal, oil or gas. Triassic and Jurassic Times. At the close of the Per- mian times practically all of what is now Oklahoma was elevated above the ocean, and the greater part of it has never again been submerged. During Triassic and Jurassic times all the country except possibly a part of western Cimarron County stood out of the water. There are some deposits along the bluffs of Cimarron River near Kenton, in the extreme western part of the State, which may be of Triassic and Jurassic age. Cretaceous Rocks. During Cretaceous times parts of southern and western Oklahoma were again submerged beneath the ocean and deposits of shale, sandstone and limestone were laid down. Almost all the rocks in that part of the State which lies south of the Ouachita and Arbuckle mountains, extending along Red River from the Arkansas line west to Ardmore, are of Cretaceous age. These rocks contain petrified oyster shells, large coiled shells called ammonites, sharks' teeth and bones of reptiles and other animals which lived during Cretaceous times. All the fossils found in these rocks are very different from those in the Arbuckle Mountains or among the coal beds. They represent higher forms of life and show a great advance over the earlier forms. In several of the counties in western Oklahoma shell rock of Cretaceous age occurs on the hills, indicating that the Cretaceous seas extended over that country also. Tertiary Rocks. During Tertiary times Oklahoma stood out of the water and the surface was worn down about to its present level. It was at this time that the Rocky 40 GEOGRAPHY OF OKLAHOMA Mountains were being eroded very rapidly and the ma- terial washed from the mountains — sand, pebbles; clay, silt and mud — was carried eastward by streams and spread out on the plains. This process continued for a long time until deposits several hundred feet thick were accumu- lated. This Tertiary deposit now makes up nearly all the surface rocks on the High Plains in western Texas, Okla- homa, Kansas, Nebraska and the Dakotas, as well as in eastern New Mexico, Colorado, Wyoming and Montana. The greater part of- the rocks exposed on the surface in Cimarron, Texas, Beaver, Harper and Ellis counties are of Tertiary age. It is believed that the sand in the sandhills along the north side of so many of the streams in central and western Oklahoma is derived from the same source. It must be remembered that the Tertiary is only a super- ficial blanket spread out over the rocks beneath, so that if a person will dig deep enough anywhere on the High Plains he will come to the underlying rocks, either Red- beds or Cretaceous rocks. These Tertiary rocks carry the good water found in wells and springs in western Oklahoma. The Tertiary is sometimes called the age of mammals. A great many large and strange beasts lived at this time, some of which have become extinct, while others have disappeared from North America and are now found only in Asia and Africa, In the rocks of the High Plains have been found bones of the three-toed horse, rhinoceros, prim- itive buffalo, pig, camel, hyena, saber-toothed tiger, arma- dillo, llama, tapir and mastodon, none of which are now native to this country. During Tertiary times there were a number of vol- canoes in what is now northeastern New Mexico and GEOLOGY 41 southeastern Colorado. One of these volcanoes was only a few miles from the northwest corner of Cimarron County and the lava flowed east and now forms the cap of Black Mesa, which extends for four miles into Oklahoma. Ashes and dust from these volcanoes, carried by western winds, drifted east and settled to the surface. Beds of "vol- canic ash" are found among the Tertiary deposits in the western counties. Quaternary Rocks. Rocks of Quaternary age are rep- resented in Oklahoma by surface deposits, such as the alluvial bottom lands along the streams and the black soil on the high divides. There is no evidence of glacial de- posits in the State. The nearest point reached by the ice sheet during the Quaternary times was in the vicinity of Topeka and Manhattan, Kansas. The most common fossils in Quaternary rocks are skeletons of the mammoth and mastodon. Mastodon bones have been reported from nearly every county in the State. QUESTIONS AND EXEECISES 1. Name some kinds of rock found in Oklahoma. 2. Define a fossil. How were fossils formed? 3. What kinds of fossils are found in Oklahoma? 4. Name ten geological periods. 5. Define sedimentary rock. Stratified rock. 6. Name the three chief kinds of sedimentary rock. 7. How was each kind formed? 8. Name the chief igneous rock. 9. What and where is the oldest stratified rock in Oklahoma? 10. Name the Arbuckle Mountain series. 11. What fossils are found in these rocks? 12. Describe the history of these mountains. 13. Why are they not as high as they once were? 14. What are the divisions of the Carboniferous period? 42 GEOGRAPHY OP OKLAHOMA 15. Where in Oklahoma are rocks of each division exposed? 16. How was coal formed? 17. What is the character of the Pennsylvanian rocks in Okla- homa? 18. What is the character of the Permian rocks in the State? 19. What minerals are found in the Permian rocks? 20. What was the condition of Oklahoma during Triassic and Jurassic times? 21. Where in the State are Cretaceous rocks found? 22. What fossils are found in the Cretaceous rocks? 23. Describe the Tertiary rocks. 24. From what were they derived? 25. What fossils are found in them? 26. Where are the Quaternary rocks? CHAPTER IV. UNDERGROUND WATER. Disposal of Rainfall. Water which falls upon the sur- face of the earth in the form of rain, snow or hail is dis- posed of largely in one of three ways. Part of it evapo- rates, part soaks into the ground, and part runs off, forming streams. The evaporated water passes into the air in the form of vapor and may again become rainfall. The water which passes into the streams is soon carried away. The amount of water which soaks into the ground varies from place to place with the character of the soil, the slope of the surface and the dryness of the climate. In a loose, sandy soil, or a level country, a large amount of water will soak in. If the country is hilly or the surface material compact, a much smaller quantity will be ab- sorbed. Underground Water. Part of the water that enters the soil is caught up by the roots of plants and some comes to the surface again and is evaporated into the air. The greater part of it, however, sinks to lower levels in the ground. At some distance below the surface all the pores or open spaces in the rock and soil are completely filled with water. That is to say, the ground, deep down, is saturated with water, forming the zone of saturation. The top of this zone of saturation is known as the water table. In some places, as in a swamp or marsh, the water table is at the surface ; in other places it may be hundreds of 43 44 GEOGRAPHY OF OKLAHOMA feet deep. It rises nearer the surface during rainy seasons and sinks during dry times. Movement of Underground Water. Underground water is everywhere slowly moving. From the uplands it moves to the valleys and in the valleys it moves downstream. In coarse sand and gravel, where the pores are large, the water moves faster than through clays or other fine- grained rocks. The rate of motion is never rapid, how- ever. Experiments conducted by the United States Geo- logical Survey along the valley of the Arkansas River show that the average rate of flow of underground water in the valley does not average more than 12 to 20 feet a day, or about a mile a year. Springs. Springs have their source in the under gro and water. ■ They usually issue at the point where* a porous bed comes to the surface. Most springs occur at the bot- tom of a ledge of sandstone, gravel or porous limestone and above a bed of fine-grained clay or shale. Springs are found in all parts of Oklahoma. In some of them the water is fresh and pure ; in others it contains gypsum or salt. In several parts of the State there are strong springs of sulphur water. Some of the finest springs in Oklahoma are in the Ozark Mountains, in the northeastern part of the State. In this region the water issues from below a ledge of limestone and just above a heavy, fine-grained shale. There are thousands of these springs along the creeks and on the mountain sides. Some of the most famous are at Tahlequah, Salem Springs, Wauhillau, Spavinaw, Bunch and Stilwell. In the Arbuckle Mountains there are a great many strong springs. The water comes usually from crevices in the limestone and coarse sandstone. The spring at old UNDERGROUND WATER 45 Fort Arbuckle is shown in Fig. 25. Such streams as Sul- phur Creek, Honey Creek, Falls Creek, Pennington Creek, Oil Creek, Mill Creek and Blue River, which flow all year, are fed by Arbuckle Mountain springs. In the Wichita Mountains there are a number of springs, some of which issue from crevices in granite rocks; others come from the limestone. In the sandstone countrv of eastern Oklahoma there Fig. 25. Spring at Old Fort Arbuckle — Wall Built in 1S52 are occasional springs which issue from under sandstone ledges. There are many springs in the limestone country of the Flint Hills in the northern part of the State. One of the most noted is Big Spring, on Little Beaver Creek, near Hardy. There are not many springs in the fine-grained shales of the Redbeds in the central counties. Among the Gypsum Hills springs are very common, many of them being very strong. The water in this region usually contains gyp- 46 GEOGRAPHY OF OKLAHOMA sum and other mineral salts in such quantities that it is often unpleasant to drink. The purest spring water in western Oklahoma comes from springs in the sandhills and the high upland. These are usually called Tertiary springs because they come from a geological formation known as the Tertiary. Examples of Tertiary springs are the Cleo Springs, Elm Springs at Alva, Caddo Springs north of El Reno and several large springs near Moscow, Aline, Grand and Woodward. Fig. 26. Mineral Springs at Bromide Mineral Springs. Mineral springs are found in many parts of the State. The most famous are at Sulphur and Bromide (Fig. 26) in the Arbuckle Mountains. There are several sulphur springs in the Wichita Mountains, partic- ularly those near Granite and Rainy Mountain. Others occur in the Ouachita and Ozark mountains. Several health resorts are located near these springs. Piatt Na- tional Park is a government reservation which includes the mineral springs at Sulphur. Wells. A well is an excavation extending from the sur- face down to the zone of saturation. Well water is ground UNDERGROUND WATER 47 water obtained through an artificial opening in the ground. It flows out of the sand or gravel in which the well usually ends and fills the well to the level of the water table — in other words, as high as the top of the zone of saturation. During wet weather the water table is raised and the water stands higher in the well. During times of drought the water table is low- ered and the water in the well becomes low, or it may disappear entirely. Wells in the valley are usually shallow, because the water table is near the surface. Upland wells are often deep because the water table is deep. An ordinary well- drilling machine is shown in Fig. 27. There is no part of Oklahoma in w h i c h water is not obtained in wells. In the four mountain regions, however, but few wells have been sunk. There are two reasons for this. First, there are few people living among the mountains; and, second, there are plenty of springs to supply water for domestic use. In the Sandstone Hills region of eastern Oklahoma wells are common, and they usually find an abundant supply of pure water at less than 50 feet. In the Redbeds and Fig. 27. Well Drilling Machine 48 GEOGRAPHY OF OKLAHOMA Gypsum Hills regions water is usually deeper, varying from 50 to 100 feet. The water often contains gypsum or salt. The best well water in Oklahoma is found among the sandhills and on the High Plains in the western part of the State. The wells are sometimes as much as 300 feet deep. The water is abundant, cool and pure. Wind- mills are used to bring the water to the surface. Artesian Wells. There are three regions in Oklahoma Fig. 28. An Artesian Well at Lehigh in which artesian wells are found. An artesian well is one in which the water rises in the well, usually coming to the surface. Wells of this kind are found only where the rock strata lie in a peculiar manner. The water enters the ground at a level higher than the mouth of the well and usually passes underground for some distance. There is an area occupying several counties in north- eastern Oklahoma in which artesian wells are found which produce strong mineral water. Wells have been UNDERGROUND WATER 49 put down at Miami, Afton, Welch, Bluejacket, Vinita, Pryor Creek, Wagoner, Chelsea, Claremore and Nowata. The water is used for medicinal purposes. At Claremore the water is very strong in mineral salts and is called Radium water. At Wagoner it is called Germicide. The source of supply of all this mineral water is in the Ozark Mountains to the east. Another artesian well region is at Sulphur in Murray County. The water is strong with sulphur gases, being very similar in taste to the water in the springs near by. The water enters the ground in the Arbuckle Mountains to the south. A third region is near Lehigh, Coal County. A well is shown in Fig. 28. QUESTIONS AND EXERCISES 1. How is rain water disposed of? 2. What becomes of the water that soaks into the ground? 3. Define Zone of Saturation. Water Table. 4. What is the average rate of flow of underground water? 5. Define spring. 6. When does a spring usually issue? 7. Where in Oklahoma are springs found? 8. Discuss the springs of the Ozark Mountains; the Arbuckle Mountains; the Sandstone Country; the Gypsum Hills; the Ter- tiary Springs. 9. Locate the salt springs of Oklahoma. 10. Locate the mineral springs of Oklahoma. 11. Define a well. 12. Discuss wells in various parts of Oklahoma. 13. Where are the artesian well regions in the State? CHAPTER V. DRAINAGE. Origin of Streams. Streams are fed partly by the rain water which runs off the surface and partly by water from springs. If the rainfall is slow and gentle and the soil is^ level and sandy, the greater part of the water will soak into the ground. This descends to the zone of saturation and finally issues in the form of springs. On the other hand, if the rainfall is violent and the surface rocky and steep, most of the water will run off and find its way into small streams. A number of small streams unite to form a creek, and a number of creeks form a river. Streams fed largely by springs usually flow all year, but those supplied by rainfall only carry no water in dry times. After very heavy rains streams become large and often overflow their banks. Chief Streams of Oklahoma. All the drainage of Okla- homa is into the Mississippi River. The two largest rivers in the State, the Arkansas and the Red, are tributaries of that river. All other large streams in Oklahoma are trib- utaries of either the Red or the Arkansas. The general course of the streams is southeast, following the slope of the Great Plains. The Arkansas River and its tributaries drain the northern part of the State, about two-thirds in all. Red River, which forms the southern boundary, re- ceives the drainage of the southern third of the State. None of the large rivers of Oklahoma rises in the State. 50 DRAINAGE 51 The Arkansas and its largest tributary, the South Cana- dian, rise among the snow-covered granite peaks of the Rocky Mountains. All the other streams rise in surround- ing states. Character of Oklahoma Streams. Generally the streams in western Oklahoma are very different in appearance from those in the eastern counties. The western streams flow in broad, sand-choked channels with low sand banks. They are supplied largely from run-off after heavy rains. Often for months at a time there will be little water in the channel. The river may be dry from bank to bank, when suddenly, without warning, a wall of foaming water several feet high, carrying all sorts of debris, will rush downstream at great speed, filling the channel bank- full. For several days the water will be high, then it will gradually recede and the channel will be dry again. In eastern Oklahoma, on the other hand, the streams have deep channels, containing very little sand, with muddy or rocky banks. These streams are spring-fed and usually contain water all the year. During the dry season the water is low, but after heavy rains the channel is bank- full. Drainage Basins. The area drained by a river or a river system is known as its basin. There is a great dif- ference in the shape of the drainage basins of eastern and western Oklahoma. Those in the western part of the State are long, narrow and ribbon-like in outline, while those farther east are oval in outline. This condition is shown on the drainage map, Fig. 29. Arkansas River. The Arkansas River, the largest stream in Oklahoma, flows for 200 miles across the north- east corner of the State. This river rises in the Rocky 52 DRAINAGE 53 Mountains and flows in a broad, shallow channel south- east across the plains of Colorado and Kansas. Near Ar- kansas City, Kansas, a few miles north of the Oklahoma line, it strikes the Flint Hills, and from this point to Tulsa, near the southeast corner of Osage County, it flows in a crooked channel among the limestone hills. Fig. 30 shows the Arkansas in eastern Kay County. The distance is about 90 miles direct, but as traversed by the river is nearly twice as great. From Tulsa to Fort Smith, Ark., Fig. 30. Valley of the Arkansas River in Kay County where the river flows from the State, the Arkansas flows in a broad, fertile valley often bounded by sandstone hills. The bed of the Arkansas is filled with sand. In Colo- rado and western Kansas much of the water is taken out for irrigation, so that in northern Oklahoma there is often little water in the channel. The many tribu- taries in the State furnish water to keep the river flow- ing all the year. From the point near Muskogee, where the Verdigris and Grand rivers empty, the Arkansas is navigable for small boats part of the year. 54 GEOGRAPHY OF OKLAHOMA The chief streams which enter the Arkansas from the north are the Grand and Verdigris. The principal south- ern tributaries are the Poteau, Canadian, Cimarron and Salt Fork. Other smaller tributaries of the Arkansas are Lees, Sallisaw, Vian, Illinois and Beaver creeks, which enter from the north, and Sansbois, Polecat, Blackbear and Redrock creeks, from the south. Grand River. This stream, the largest northern tribu- tary of the Arkansas, is formed by two streams, Neosho and Spring rivers, which unite in the northern part of the State. The Neosho River drains southeastern Kansas and Spring River drains southwestern Missouri. Grand River flows through a fertile valley along the western edge of the Ozark Mountains and enters the Arkansas at Fort Gibson. It is a clear, swift stream flowing over a rocky or pebbly bed. It carries a large amount of water and is one of the finest rivers in the State. Spavinaw, Saline, Pryor and Big Cabin creeks are the largest tribu- taries. Verdigris River. Verdigris River rises in east-central Kansas and flows south. It crosses Nowata, Rogers and Wagoner counties before entering the Arkansas near the mouth of the Grand. The river flows through a broad valley, much of which is swamp land, in a crooked chan- nel with steep mud banks. The chief tributaries are Caney, Bird, Dog and Big creeks. Poteau River. The Poteau is the only large stream in Oklahoma that flows north. It takes its rise among the high sandstone hills of the Ouachita Mountains in south- western Arkansas, flows northwest and enters Oklahoma in southeastern Le Flore County. The river follows a tor- tuous course, flowing back and forth among the sand- DRAINAGE 55 stone bluffs, and empties into the Arkansas River at Fort Smith. The channel is deep, with steep rock and mud banks; the valley is sometimes broad and sometimes nar- row. Several veins of coal cross the valley and the region is destined to become, in time, a wealthy manufacturing section. Brazil Creek and Black Fork are the chief tribu- taries. South Canadian River. The South Canadian, the largest tributary of the Arkansas, rises in New Mexico. It crosses the Panhandle of Texas before entering Oklahoma, and then flows for 350 miles and joins the Arkansas 40 miles above Fort Smith. In the western part of the State the river swings back and forth in a series of ox-bow bends and flows in a canyon-like valley about 200 feet deep. In Dewey and Custer counties it flows among the Gypsum Hills. The drainage basin in Oklahoma is narrow, not averaging more than 20 miles wide, while in places it is less than 10 miles. The channel is sand-choked and aver- ages half a mile in width, the banks being low and sandy. The channel is constantly shifting, and bends and cut- offs are common. It is the most uncertain and treacherous of all Oklahoma streams. Sudden and rapid rises are common. Fig. 31 shows a team crossing the South Cana- dian in high water. The largest tributary is the North Canadian, which in turn receives Deep Fork. The river has few large tributaries in Oklahoma, the largest being Gaines Creek, Little River and Deer Creek. North Canadian River. The North Canadian is formed by Wolf Creek and Beaver Creek, which unite at Fort Sup- ply, in Woodward County. Wolf Creek rises in the north- ern part of the Panhandle of Texas and flows northeast. Beaver Creek rises among the volcanic peaks in north- 56 GEOGRAPHY OF OKLAHOMA eastern New Mexico. It flows east across Cimarron, Texas, Beaver and Harper counties before joining Wolf Creek. Its chief tributaries are Coldwater, Palo Duro, Clear and Kiowa creeks. The North Canadian flows parallel to the South Canadian across Oklahoma. The width of the drainage basin does not exceed 20 miles and in several places the distance from the bed of the North Canadian across the divide north of the stream to the water of the Cimarron is not more than a mile. Its bed averages 200 Fig. 31. A Team Crossing the Canadian River in Flood feet higher than the valley of the Cimarron. There is a saying in western Oklahoma, "the North Canadian flows on a ridge." In its upper course the bed of the stream is filled with sand and the banks are low, but from Okla- homa City eastward the amount of sand decreases and the banks are steep and muddy. The water is purer than that of most streams in the State, partly because it is fed largely by springs from the sandhills, and partly because no salt springs drain into this stream. North Canadian has few tributaries. Deep Fork is the largest. Others of some importance are Wewoka, Persimmon and Indian DRAINAGE 57 creeks. Deep Fork rises in Oklahoma County and flows east across Lincoln, Creek and Okmulgee counties. It is a narrow stream flowing in a crooked channel. The bottom lands along this stream are subject to frequent overflow. Cimarron River. The Cimarron rises among the vol- canic peaks of northern New Mexico and flows east, crossing parts of Oklahoma, Colorado and Kansas before finally entering Oklahoma at the Salt Plain on the Woods- Harper county line. For 60 miles or more it flows in a broad canyon among the Gypsum Hills, then passes out onto the Redbeds Plains and flows east and enters the Arkansas River at the southeastern corner of Pawnee County. The Cimarron drainage basin is broader and more regular in outline than that of any other stream in western Oklahoma, averaging more than 40 miles wide. The bed is broad and sandy, with low sand banks, as shown in Fig. 32. The flow of water is intermittent, and the stream is subject to sudden and rapid rises, rendering it often unsafe to ford. Below the Salt Plains the water contains a large amount of salt, rendering it unfit to use. The chief tributaries are Buffalo, Eaglechief, Salt, Tur- key, Kingfisher, Cottonwood, Skeleton and Stillwater creeks. S'ait Pork River. The Salt Fork of the Arkansas, an- other typical stream of the plains, rises in southern Kan- sas and flows east across Woods, Alfalfa, Grant and Kay counties, a distance of 115 miles, before entering the Ar- kansas. The banks are low and sandy and the channel is filled with sand. The stream carries pure water as far as the Salt Plains in Alfalfa County, but below that point the water is salty. The valley of the stream is very fer- 58 GEOGRAPHY OF OKLAHOMA tile. The principal streams which empty into Salt Fork are Medicine, Mule, Sand, Chikaskia, Deer, Cottonwood and Bois d'Arc creeks. Washita River. The Washita is the only stream in western Oklahoma which has steep mud banks and little sand in its channel. This is accounted for by the fact that the "Washita flows across the Redbeds for almost its entire course. Rising in the Panhandle of Texas, it flows Fig. 32. Cimarron Ri^er, Showing the Low, Sandy Banks. east into Oklahoma and across Roger Mills, Custer, Wash- ita, Caddo, Grady, Garvin, Murray, Carter, Johnson and between Marshall and Bryan counties before emptying into Red River. In the western part of the State the river cuts its way through the Gypsum Hills. Then it flows out on the Redbeds Plains as far as the Arbuckle Mountains. It crosses these mountains in a deep gorge which it has cut through limestone rocks. (Fig. 33.) South of the Arbuckles it crosses the Cretaceous forma- DRAINAGE 59 tions. The valley of the Washita is one of the most fer- tile parts of Oklahoma. Its chief tributaries are Quarter- master, Cavalry, Rainy Mountain, Cobb, Sugar, Little Washita, Rush, Wild Horse, Caddo, Mill and Pennington creeks. Red River. Red River forms the southern boundary of Oklahoma. This river resembles the Cimarron and South Canadian in having a broad and sandy channel and an intermittent flow. The name of the river is derived from " -'^Lm • >'** .&*&°'''"n 3£** "* : ;j|gi! ■-■■:■:.-. Fig. 33. Limestone in the Washita Gorge the color of the water, and the red color comes from the Redbeds across which the river flows. The river rises on the High Plains, or Llano Estacado, of northern Texas. In its upper course it flows for nearly 100 miles in Palo Duro Canyon, which is in places 1,000 feet deep — the deepest gash cut by stream erosion anywhere on the Plains. Red River has a number of tributaries in southern Okla- homa. The Washita has already been described. Little River (Fig. 34) and Kiamitia (Pig. 33) drain the Ouachita Mountains. Boggy Creek drains the southern part of the Sandstone Hills region and the country between the 60 GEOGRAPHY OF OKLAHOMA Ouachitas and the Arbuckles. Blue Kiver drains the east- ern part of the Arbuckles. Mud and Beaver creeks drain the southern part of the Redbeds Plains, which lies be- tween the Arbuckles and the Wichitas. Cache Creek drains the eastern part of the Wichitas and the surround- ing plain. North Fork of Red River rises in the Pan- handle of Texas and flows southeast. Its chief tributaries are Elm Fork, Elk and Otter creeks. Salt Fork empties inta South Fork. North, South, Salt and Elm Forks Fig. 34. View on Little River, Eastern Oklahoma of Red River are typical streams of the Plains, with broad, sandy channels and low banks. The other streams named have steep mud or rock banks and carry little sand. Lakes. Oklahoma has no large lakes. Lakes are char- acteristic of an ill-drained country, and Oklahoma is everywhere well-drained. Along the larger streams, such as Arkansas, Red and Canadian rivers, there are a few long and narrow lakes that have been formed by cut-off bends. On the High Plains there are numerous broad, shallow basins which are sometimes filled with water, but these are seldom more than 100 yards in diameter. Arti- , T ^7' r ' Fig. 35. Ferry Boat on Kiamitia River Fig. 36. An Artificial Lake Near Newkirk CI 62 GEOGRAPHY OF OKLAHOMA ficial reservoirs, sometimes known as "tanks" are com- mon in grazing regions. Fig. 36 shows an artificial lake near Newkirk. QUESTIONS AND EXERCISES 1. How are streams fed? 2. Into what stream does all the drainage of Oklahoma finally flow? 3. Name the two largest rivers in the State. 4. Where do the large rivers of Oklahoma rise? 5. What difference is there between the streams in eastern and western Oklahoma? 6. Study the drainage map. Notice the soured and direction of the various rivers. 7. Trace the divide between the Arkansas and Red River. 8. Compare the shape of the drainage basin of North Canadian and Grand River. 9. Describe the Arkansas River, noting source, direction of flow, chief tributaries, counties crossed or bordered, and chief cities. 10. Describe likewise the Grand; Verdigris; Poteau; South Canadian; North Canadian; Cimarron; Salt Fork. 11. Describe Red River; Washita. 12. Why has Oklahoma no large lakes? CHAPTER VI. WEATHER AND CLIMATE. Weather refers to the condition of the air in regard to rain, clouds, wind and heat. Climate is the sum total of the weather for a long period of time. The weather often changes suddenly, but climate changes so slowly that we can rarely observe any variation in it. Weather. The chief factors which go to make up the weather in any particular region are temperature, winds, humidity, sunshine and cloudiness and precipitation. If we know these we can determine what the weather will most likely be. These terms will now be explained. Temperature. Temperature is the amount of heat that any region receives, and is a very important thing to con- sider, for upon it depends largely the kind of animal and plant life in any place. Weather may be hot, cool or cold. The average temperature for a day or year is called the mean temperature. The difference between the high- est, or maximum, and lowest, or minimum, is called the range of temperature. Air. Air is a mixture of several gases. The most im- portant are nitrogen, oxygen, carbon dioxide and water vapor. The great body of air which surrounds the earth is called the atmosphere. Like other substances, air has weight. At the surface of the ocean, where the pressure is greatest, 13 1-3 cubic feet of air weigh a pound and the weight of the air on every square inch of surface is 63 64 GEOGRAPHY OF OKLAHOMA about 15 pounds. As we ascend from sea level the density of the air constantly decreases and thus the air becomes lighter. When air is heated it rises. Other air rushes in to supply its place, -forming winds. You have noticed that when a strawstack or brush pile was burned on a still day the heated air ascended, carrying with it a col- umn of smoke. If you will walk around the fire you will find that the air is moving inward toward it from all directions. The ascending column of air and the cur- rents flowing into it from all directions is a good illus- tration of what is happening at the point of low pressure in one of the great cyclonic storms which pass over Okla- homa. Wind. Wind, then, is air moving along the surface of the earth, and it is caused by the unequal heating of the air in different places. The rate at which the air moves varies greatly. A gentle breeze which hardly moves the leaves moves about two miles an hour. A prairie wind may move 15 to 20 miles an hour, and a destructive storm as much as 80 or 100 miles an hour. Humidity. By the term humidity we mean the amount of water vapor in the air. If the air contains little mois- ture the humidity is low. If much moisture is present the humidity is high. When air contains as much water vapor as it will hold it is said to be saturated. The warmer the air the more water vapor it will hold. If saturated air is cooled, the water vapor is condensed in small drops, forming clouds, fog or dew. Clouds form a curtain in the sky and prevent the direct rays of the sun from reaching the earth. In some countries clouds are almost always present, but in Oklahoma about 250 days in the year are WEATHER AND CLIMATE 65 clear. There are more clear days in the western part of the State than in the eastern. Precipitation. The term precipitation is used to in- clude all the moisture that falls on the surface of the earth. In one climate by far the greater part of the precipitation is in the form of rain; in another it may be snow. In Oklahoma the greater part is in the form of rain. During the summer months hail sometimes falls. In the winter the drops of water are often frozen as they pass through the air and form sleet. When the moisture in the air is condensed at a temperature below freezing point frost or snow results. The greatest amount of rain in any one month falls in May. Weather Bureau. One of the departments of the United States Government is the Weather Bureau. Under the direction of this bureau stations have been established at every large city and at many other places for the pur- pose of observing and recording weather conditions. At these various stations observations are made twice a day — at eight o'clock, morning and evening, Washington time. The observer notes the direction of the wind, the clearness of the sky, the temperature, air pressure and the amount of precipitation that has fallen in the last twelve hours. These observations are sent by telegraph to Washington and other large centers, and a map is pre- pared showing the weather conditions in all parts of the country. By studying the map the officers are able to predict the weather from twenty-four to thirty-six hours in advance. About four-fifths of the predictions are cor- rect. The station for Oklahoma is at Oklahoma City. Daily weather maps may be obtained free by people of 66 WEATHER AND CLIMATE 67 Oklahoma by sending to the Director of the Weather Bureau at Oklahoma City. Cyclones. Oklahoma weather is said to be cyclonic. A cyclone is a disk of air, hundreds of miles in diameter, covering several states, and about two miles thick, ly- ing upon the surface of the earth. At the center of this area is a center of low pressure, where the heated air is constantly rising. Cooler air from areas of high pressure without the cyclonic area flows in along the ground, ascends at the center and flows upward with a spiral twist in the opposite direction from the hands of a clock. In addition to this circular motion the cyclone as a whole is moving across the country at the rate of 20 to 30 miles per hour. The direction is usually eastward. These cyclones pass over Oklahoma usually at intervals of from three to seven days. During the passage of a cyclone over Oklahoma the weather usually changes sev- eral times. As the air in the area of low pressure ascends it is cooled, the moisture is condensed and clouds are formed. Rain begins to fall. Thunder storms and hail are frequently produced. After the storm center or low pressure area has passed, the wind changes to the north, the clouds disappear and the sky is clear and the weather cooler for several days. Fig. 37 shows the progress of a cyclone across Oklahoma. Most of the Oklahoma storms originate either in the northwestern part of the United States and pass south- east, or in the New Mexico region and pass northeast. The former are the ' ' northers " or " blizzards ' ' in winter, and the latter cause most of our thunder storms and tornadoes. After crossing our State the storms pass east- ward across the Mississippi Valley; and many of them 68 GEOGRAPHY OF OKLAHOMA swing to the northeast, cross the Great Lakes and turn down the St. Lawrence Valley. Most storms are bene- ficial, because they bring rain, without which vegetation could not exist. Only occasionally is the State visited with destructive storms, such as a tornado, hailstorm or cloudburst. Climate. Climate is the sum of the weather for a num- ber of years. The principal causes' which influence cli- ■irmary II ill II 1 J 1 II III II 1 jl 1 1 ill 1 I I ' 1 J tt 1 1 1 1 il 1 1 III IJJ 1 I|m iii 1 1 1 1 ii 1 1 1 1 1 1 1 1 ii 1 1 1 1 1 M ii 1 1 ii 1 1 1 1 1 ii 1 1 ii i it in ii in it til 1 1 1 1 1 1 ii ii i ii i ii i Jar, February March April Mau June duly AuyuSt Oe/'remier October /Voirember December Annua/ Chan Shon\nj Areraye A'fonthly Temperatures in Oklahoma Fig. 38. Chart Showing the Monthly Temperature of Oklahoma mate are: Latitude, or distance from the equator; alti- tude, or distance above sea level; direction of the pre- vailing winds; distance from large bodies of water; hu- midity, or amount of moisture in the air; ocean currents; and mountains. Countries which are located near the equator have a warm or torrid climate, but near the poles the climate is frigid. Oklahoma is situated midway between the equator and the poles and has a temperate climate. WEATHER AND CLIMATE 69 Temperature. Temperature changes with altitude about one degree for every 65 feet. The tops of high mountains are always cold, even those near the equator. Western Oklahoma is nearly 5,000 feet above sea level and the climate is much cooler than in the eastern part of the State, where the altitude is less than 1,000 feet. Fig. 38 shows the monthly temperature of Oklahoma. Winds. Winds bring high or low temperature and moisture and consequently affect climate. The cold north :IE=^ "WxH OKLAHOMA "VS Fig. 39. Chart Showing the Mean Annual Precipitation in Oklahoma winds make the winter climate of Oklahoma colder than it would otherwise be. The hot southwest winds in sum- mer bring excessive heat from the heated plains. Large bodies of water temper the climate and make changes less frequent. The nearest large body of water to Okla- homa is the Gulf of Mexico, about three hundred miles distant. The influence of the Gulf is felt especially in the southern and eastern parts of the State, where the rain- fall is heavy and the temperature less changeable than further north and west. 70 GEOGRAPHY OF OKLAHOMA Humidity. The humidity of Oklahoma decreases from east to west. The greater part of the State is in what is known as the humid region of the United States. The extreme western counties only are in the arid region. The climate in the interior of continents is spoken of as a continental climate. It is subject to frequent changes. Near the oceans, where changes are less frequent, the climate is known as an oceanic climate. The climate of UanuafL r e br iruary March Afrit A/ ay <)#/y Areraye Monthly Precipitation in Oklahoma Fig. 40. Chart Showing the Average Monthly Rainfall in Oklahoma Oklahoma is continental. The almost constant breezes purify the air and make it very healthful. Rainfall. The rainfall of Oklahoma varies from place to place, from year to year, and from season to season. The chart shown in Fig. 39 shows the mean annual rain- fall for the past seventeen years. It will be seen that the rainfall steadily decreases from east to west. Snow rarely falls in southeastern Oklahoma, but in the north- WEATHER AND CLIMATE 71 ern part of the State it sometimes occurs. Fig. 40 shows the average monthly rainfall in Oklahoma. The following table shows the mean annual rainfall for the State by months for the past seventeen years : nj x . Eastern Division. t , Station. Inches. Durant 40.41 Tahlequah 43.91 Muskogee 37.28 Tulsa 34.65 Holdenville 37.95 Webber Falls 38.74 Fairland 43.04 «, ,. Central Division. t . Station. Inches. Ardmore 37.13 Chickasha 30.76 Guthrie 31.50 Kingfisher 29.50 Newkirk 32.80 Oklahoma 30.96 Pawhuska 41.03 Shawnee 33.08 „, j_. Western Division. t . Station. Inches. Arapaho 28.07 Alva 28.58 Fort Sill 31.59 Kenton 15.74 Mangum 26.23 Temple 29.27 Weatherford 26.39 72 GEOGRAPHY OF OKLAHOMA Rainfall by Months. Month. Inches. Month. Inches. January 1.26 July 3.56 February 1.24 August 2.97 March 2.41 September 3.04 April 3.07 October 2.43 May 5.31 November 1.83 June 3.82 December 1.47 These figures show that the greater part of the rain- fall occurs during the spring and summer months, i. e., during the growing season. Oklahoma Climate. Oklahoma has a bright and sunny climate and sufficient rainfall for vegetation, but is not so humid as to be unhealthful. The amount of sunshine and the dry cool air are all favorable to health. As a re- sult, Oklahoma is a healthful State. Its low death rate is due largely to its climate. QUESTIONS AND EXEEC1SES 1. What is weather? 2. What is climate? 3. What are the chief factors which go to make up weather? 4. What is temperature? With what instrument is it measured? 5. What do you understand by maximum, minimum, and mean temperatures? 6. What is wind? 7. What is meant by humidity? 8. What is meant by precipitation? 9. Study the map on page 69, and find out what the precipita- tion of your special locality is. WEATHER AND CLIMATE 73 10. Study the same map and try to tell why western Oklahoma gets less rainfall than eastern Oklahoma. 11. What is low pressure? High pressure? 12. Study Figure 37. Where is the center of low pressure? In what direction is the wind flowing east of this center? West? South? Where is the area of clouds? The area of clear weather? Where do the storms occur? . 13. What is cyclonic weather? A cyclone? 14. What are some characteristics of a continental climate compared with an oceanic? CHAPTER VII. VEGETATION AND AOTMAL LIFE. Flora and Fauna. The flora of a region includes all the plants, and the fauna all the animals found there. The plant life of a region is more directly dependent up- on climatic conditions than the animal life, for plants Fig. 41. Up-land Timber in Eastern Oklahoma cannot move from one place to another as animals can. The chief factors affecting the flora of a country are : the amount and the distribution of rainfall ; the temperature ; and the character of the soil. The distribution of animal life depends chiefly upon the distribution of plants and the abundance of other animals. 74 VEGETATION AND ANIMAL LIFE 75 Flora of Oklahoma. Eastern Oklahoma lies in the tim- bered region of the United States; western Oklahoma is in the prairie region. The line of separation of forest and prairie corresponds roughly to the line which sep- arates the Sandstone Hills from the Redbeds Plains ; and lies east of the main line of the Santa Fe railroad. No hard and fast lines can be drawn, however, for there are Fig. 42. A Saw Mill in Eastern Oklahoma considerable areas of prairie east of this line, and some forest areas are found west. Trees. The trees of eastern Oklahoma are the ordinary forest species found in the Mississippi valley. On the hills the principal trees are several species of oak and hickory shown in Fig. 41, besides ash, persimmon, sassa- fras, pine and cedar. A saw mill is shown in Fig. 42. Along the valleys, cottonwood, elm, maple, sycamore, willow, hackberry, walnut, bois d'arc, pecan and sweet gum, are most common. Several species of wild plum 76 GEOGRAPHY OF OKLAHOMA and wild cherry, mulberry, honey locust, haw, crabapple and wild grape are found. Fig. 43 shows piles of cross ties and lumber at a station. Fig. 44 shows a rail fence and deadened timber in a clearing in eastern Oklahoma. In the western half of the State trees are found usual- ly only along the streams or among the sand hills. The level uplands are grass-covered. Cottonwood, elm, hack- berry, chinaberry, walnut and willow are the prin- n * "* *"^ K ,;,* -,„■ -- .^<^< :■ ' .*- i:. >' - Fig. 43. Piles of Crossties and Lumber at Bennington cipal trees along the streams. Fig. 45 is a dwarfed elm. Fig. 46 shows cottonwood and elm trees. On the flat prairies and along some of the streams in the western counties is found the thorny mesquite. Black jack, post oak, hackberry and hickory grow in the sand hills. On the High Plains in the extreme western part of the State there are very few trees even along the streams, but even here an occasional low elm or dwarf cottonwood or willow may be found. VEGETATION AND ANIMAL LIFE 77 Grasses. There are a great many species of native grasses in Oklahoma. In the eastern and central parts of the State the grasses grow tall. The chief grass in this region is commonly known as "bine stem." On the High Plains the most common form is called "buffalo grass." Buffalo grass grows only two or three inches high; but it stands very thick and forms a heavy sod carpet on the ground. Western Oklahoma is sometimes Fig. 44. Rail Fence and Deadened Timber known as the "short grass country." The principal cul- tivated grasses are alfalfa and Bermuda grass. Clover, orchard grass and blue grass are cultivated in lawns, and timothy is grown in the eastern counties. In the sandy country on the High Plains is found the so-called sage brush and the spiney yucca. Several species of cactus, also, grow on the plains. Mistletoe. The mistletoe grows everywhere in Okla- homa except in the northwestern part of the State. It is 78 GEOGRAPHY OF OKLAHOMA a parasite and flourishes best on elm trees. The branches are short and stubby, the leaves dark green and in win- ter the berries are white. The beautiful dark green clus- ters with white berries form handsome decorations. Great quantities of mistletoe are every year shipped to northern markets at Christmas time. The mistletoe is usually accepted as the state flower of Oklahoma. Fauna of Oklahoma. Oklahoma contains a very diverse Fig. 45. A Dwarf Elm on the High Plains fauna. The borderland of forest and prairie has helped to promote animal migration. Many of the largest and most useful of the wild animals have been destroyed by man so that now only the smaller and less important re- main. Wild Animals. Buffalo once roamed in countless num- bers over our plains, but they have practically all been killed. At the present time three small herds are kept in VEGETATION AND ANIMAL LIFE 79 captivity, one herd at Pawnee, one at Bliss, and one in the Forest Reserve in the Wichita Mountains, Fig. 47. Elk were once plentiful but they have long since dis- appeared. A few years ago there were still several droves of antelope on the High Plains but there are none now. Deer are found occasionally in the timbered country in eastern Oklahoma. Bears and panthers which were once common have about all disappeared. Gray wolves are Fig. 46. Cottonwood and Elm Timber Along a Stream — Western Oklahoma occasionally found and coyotes are still common in cer- tain localities in the central and in the western part of the State. Jack rabbits and ground squirrels are common on the prairies, and cotton-tail rabbits, red squirrels and gray squirrels in the timber. Badgers, minks, and otters are occasionally found, but the beavers have all been de- stroyed. Muskrats live along the streams. Gophers are common and many colonies of prairie dogs are yet found 80 GEOGRAPHY OF OKLAHOMA in the western part of the State. Wild cats, raccoons, opossums, and skunks are still to be seen in many regions. Birds. There is a great variety of birds in Oklahoma. Among the flesh-eating birds are several species of owls, of which the barred owl, screech owl, monkey-faced owl, and prairie-dog owl are most common. A number of spe- cies of hawks, also, abound. The Mississippi kite is com- mon in the western counties. Both the bald eagle and the Fig. 47. Buffalo Herd in the Forest Reserve, Wichita Mountains Photograph by Dedrick, Talogu, Okla. golden eagle are found, and the turkey buzzard is com- mon everywhere. Game birds are common. Quails are abundant, and prairie chickens and wild turkeys are still found in sparsely-settled localities. Ducks, geese, brants, cranes, snipe, plover, mud hens, curlew, and other migra- tory wildfowl are common at certain seasons of the year. Crows are found in the timbered country. There are many kinds of song birds both in the timber and on the VEGETATION AND ANIMAL LIFE 81 prairie, the most common of which are various species of sparrows, thrushes, orioles, blackbirds, doves, larks, warblers, fly catchers, and robins. Snakes and Lizards. There are but few kinds of poi- sonous snakes in Oklahoma; the rattle snake, the copper- head and the water moccasin, and none of these is com- mon. There are four forms of the rattlesnake in the State, the most common of which are known as the prairie rattler, the timber rattler, and the diamond rattler. All snakes except the poisonous ones are useful to man and should not be killed. Among these are the bull snake, spreading adder, water snake, black snake, king snake, blue racer, coach whip, garter snake, and house snake. Frogs and toads which are common are useful also. There are several species of small lizards, the largest of which is sometimes known as the "mountain boomer." It is really a chameleon and has the power of changing the color of its skin. There are two peculiar kinds of lizard in Oklahoma which bear the name of another an- imal. The "horned toad" is not a toad at all, but a lizard. It is much more common further west than in Oklahoma. The "joint snake" is a lizard also. Its tail, which is longer than the rest of its body, is composed of sutures which may be pulled apart. The animal may lose all its tail and still live. Turtles. There are several varieties of turtles, both on land and in water. The most common land form is the box tortoise, sometimes known as the terrapin. The two most common turtles living in water are the soft-shelled and the hard-shelled turtle. Both kinds are used for food. Do Not Kill Snakes. None of these small forms of an- 82 GEOGRAPHY OF OKLAHOMA imals, except the poisonous snakes, are harmful to man. Most of them are very useful* They destroy countless numbers of harmful insects and small animals such as mice and rats. Only ignorant or cruel people now kill snakes, toads, lizards or turtles. Fishes. The streams of Oklahoma abound with fish. Bass, perch, catfish, sunfish, trout and buffalo are the most abundant native species. German carp and crappie have been introduced into many streams and ponds. QUESTIONS AND EXERCISES 1. Define flora; fauna. 2. What factors affect the fauna of a country? The flora? 3. What part of Oklahoma is timbered? 4. Name the trees growing on the upland in eastern Oklahoma. 5. Name the principal species found in the valleys. 6. Where are the trees found in western Oklahoma? 7. Name t.ke chief species. 8. What are the principal wild grasses? The cultivated grasses? 9. Name some plants found* on the High Plains. 10. Describe the mistletoe. 11. Name some wild animals that are nearly extinct. 12. What are the most common wild animals in the State? 13. Prepare a list of all the birds you can think of that live in Oklahoma. 14. What are the poisonous snakes? 15. Name the non-poisonous snakes. 16. To what form of life do the horned toad and joint snake belong? 17. Why should non-poisonous snakes, toads, turtles and lizards not be killed? 18. Name the principal kinds of fish found in Oklahoma. CHAPTER VIII. LOCATION OF INDIAN TRIBES. Original Owners of Oklahoma, By the provisions of the Louisiana purchase of 1803, all of Oklahoma except that part which lies west of the one hundredth meridian, came into the possession of the United States. The Osage Indians claimed all the land north of the South Canadian River, and the Quapaws all the land south of that stream. In 1817 both these tribes ceded their land to the general government. Homes of the Five Civilized Tribes. At this time there were living in the southeastern part of the United States several Indian tribes — among others the Cherokees, Creeks, Seminoles, Choctaws and Chickasaws. The Cherokees lived in the country covered by the corners of the states North Carolina, South Carolina, Georgia, Ala- bama, Tennessee and Virginia. The Creeks, who knew themselves as the Muskogees, lived in western Georgia and Alabama. The Seminoles, a branch of the Musko- gees, lived in southern Georgia and Florida. The Choc- taws and Chickasaws lived in western Alabama and Mis- sissippi. As these southern states were settled these tribes re- tired before the encroachments of the white man, until finally they were confined to small reservations. At vari- ous times they sold their homes to the government and received in return certain lands in what is now Okla- 83 84 GEOGRAPHY OF OKLAHOMA lioma. By the terms of the treaties the land was to be- long to the Indians forever. Migration of the Five Civilized Tribes. Before the year 1820 the Cherokees had sold part of their land in North Carolina to the general government and received cession of land north of the Arkansas River in what is now northeastern Oklahoma. This included not only the old Cherokee Nation, but also the Osage, Pawnee, Ponca, Otoe and Tonkawa reservations and the so-called Chero- kee Outlet or "The Strip." In 1820 the Choctaw Indians gave to the government certain lands in Mississippi and received in lieu thereof lands in the Indian Territory, lying between the Cana- dian and Red rivers ; and in 1832 the Chickasaws, a band of the Choctaws, came west and settled on the same land. In 1825 the Creek Indians ceded to the United States their lands in Georgia and received, acre for acre, land lying, north of South Canadian River extending north to the Cherokee possessions. In 1833 the Seminoles re- ceived a grant of land along the southern part of the Creek country, including everything between the North and South Canadian rivers, extending from a point near where Shawnee is now located, westward to the Texas line. At the opening of the Civil war, the Five Civilized Tribes — the Cherokees, Creeks, Seminoles, Choctaws, and Chickasaws — owned all that is now Oklahoma except No Man's Land and Greer County. Texas claimed Greer County. Disposal of Land by the Five Civilized Tribes. After the war, in 1866, all the tribes except the Cherokees, were forced to give up to the general government part of their territory. The Seminoles ceded to the United < w> tn -U