Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the Cimarron River from Freedom to Guthrie in northwestern Oklahoma

This data set consists of digital water-level elevation contours
for the alluvial and terrace deposits along the Cimarron River
in northwestern Oklahoma during 1985-86. Ground water in 1,305
square miles of Quaternary-age alluvial and terrace deposits
along the the Cimarron River from Freedom to Guthrie is an
important source of water for irrigation, industrial, municipal,
stock, and domestic supplies. Alluvial and terrace deposits are
composed of interfingering lenses of clay, sandy clay, and
cross-bedded poorly sorted sand and gravel. The aquifer is
composed of hydraulically connected alluvial and terrace
deposits that unconformably overlie the Permian-age Formations.

Water-level elevations measured in 1985 and 1986 ranged from
1,650 feet to 950 feet above sea level. Regional ground-water
flow is generally southeast to southwest towards the Cimarron
River, except where the flow direction is affected by perennial
tributaries. The water-level elevation contours were digitized
from a mylar map at a scale of 1:250,000. The maps were
published at a scale of 1:900,000.