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 aquifer boundaries for the
alluvial and terrace deposits along the Cimarron River from
Freedom to Guthrie in northwestern Oklahoma. Ground water in
1,305 square miles of Quaternary-age alluvial and terrace
deposits along 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.

The aquifer boundaries along geological contacts were extracted
from published digital geology data sets. Additional boundaries
defining the geographic limits of the aquifer and areas of less
than 5 feet saturated thickness were digitized from a mylar map,
at a scale of 1:250,000. The maps were published at a scale of
1:900,000.