Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Canton Lake to Lake Overholser in central Oklahoma

This data set consists of digital water-level elevation contours
for the alluvial and terrace deposits along the North Canadian
River from Canton Lake to Lake Overholser in central Oklahoma.
Ground water in approximately 400 square miles of Quaternary-age
alluvial and terrace aquifer is an important source of water for
irrigation, industrial, municipal, stock, and domestic supplies.
The aquifer consists of clay, silt, sand, and gravel. Sand-sized
sediments dominate the poorly sorted, fine to coarse,
unconsolidated quartz grains in the aquifer. The hydraulically
connected alluvial and terrace deposits unconformably overlie
Permian-age formations. The aquifer is overlain by a layer of
wind-blown sand in parts of the area.

Water-level elevation contours, based on water-levels measured
in 1980, were digitized from a folded paper map in a
ground-water flow modeling report for the aquifer. The source
map was published at a scale of 1:250,000. Water-level
elevations in the alluvial and terrace deposits ranged from
1,600 feet above sea level in the northwest to 1,220 feet above
sea level in the southeast.