B.L. Stacy | Geology Reports

USGS1960

Ground water in the alluvial deposits of Cottonwood Creek Basin, Oklahoma

Cottonwood Creek basin is a 377 square mile area in central Oklahoma. The rim of the basin has altitudes as high as 1,300 feet, and the mouth is at an altitude of 910. Deposits of Quaternary age consist of alluvium along the stream courses and high terrace deposits along the southern rim of the basin. The alluvium contains a high percentage of clay and silt, ranges in thickness from a few inches to 40 feet, and underlies about 36 square miles of the basin. Sandstone, siltstone, and shale of Permian age, which form the bedrock, consist of the Garber sandstone along the eastern edge, the Hennessey shale through the central part, and Flowerpot shale along the western edge. Replenishment of water in the alluvium is from precipitation, lateral seepage and runoff from adjoining areas, and infiltration from the stream channels during high flows. The major use of ground water in the alluvium is transpiration by cottonwood and willow trees. Virtually no water is withdrawn from the alluvium by wells. (available as photostat copy only)

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USGS1958

Ground water in the alluvial deposits of the Washita River and its tributaries in Oklahoma

Physical features.--The Washita River heads in the Texas Panhandle, in Hemphill, Roberts, and Wheeler Counties. It flows generally east-southeastward through southwestern and south-central Oklahoma to its confluence with the Red River above Denison, Texas, at a point about 4 miles northwest of Cartwright, Oklahoma. That point of confluence is now beneath the waters of Lake Texoma, into which the river flows near Tishomingo in southern Johnston County. The average gradient of the Washita River is about 3.7 feet per mile, beginning with an elevation of about 2,800 feet at its source, and ending with an elevation of about 510 feet at its mouth. The river is about 626 miles in length. The total area of the Washita River drainage basin is about 7,945 square miles, of which about 463 square miles is in Texas. The 7,482 square miles of the basin in Oklahoma is in the 17 counties of Roger Mills, Beckham, Comanche, Grady, Stephens, McClain, Custer, Washita, Caddo, Kiowa, Garvin, Carter, Bryan, Murray, Pontotoc, Johnston and Marshall. The river has a winding, sinuous course. In some reaches, such as near Anadarko, it flows in broad meanders 3 or 4 miles across which have incised the bedrock. Throughout its course in Oklahoma the river meanders within its alluvial valley, so that the valley is much shorter than the river channel. In Texas and at the western edge of Oklahoma the Washita flows in a valley cut in rocks of the High Plains; much of the coarse gravel and sand of the alluvium is derived from these rocks. About nine-tenths of the Oklahoma portion of the valley, from western Roger Mills County to near Davis in northern Murray County, is cut in Permian redbeds. These red beds consist largely of shale, siltstone, and fine-grained sandstone. In the western part of the basin, down to about Mountain View in northeastern Kiowa County, they contain irregular layers of gypsum. The gypsum locally forms steep valley walls, such as those along State Highway 152 east of Cordell. (available as photostat copy only)

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