USGS

Digital map of the elevation of the base of the High Plains aquifer in the Republican River Basin upstream of Hardy, Nebraska, in parts of Nebraska, Kansas, and Colorado

Open-File Report 02-064

by Michaela R. Johnson, James F. Cornwall, and Matthew K. Landon

ABSTRACT

This digital spatial data set consists of the aquifer base elevation contours (50-foot contour interval) for part of the High Plains aquifer in the central United States. This subset of the High Plains aquifer covers the Republican River Basin in Nebraska, Kansas, and Colorado upstream from the streamflow station on the Republican River near Hardy, Nebraska, near the Kansas/Nebraska border. In Nebraska, the digitized contours extend to the South Platte, Platte, and Little Blue Rivers. In Colorado and Kansas, the digital contours extend to the edge of the High Plains aquifer. These boundaries were chosen to simplify boundary conditions for a computer simulation model being used for a hydrologic study of the Republican River Basin.  The data are not intended for use at scales larger than 1:500,000.


Digital Data for OFR02-064


REFERENCES CITED

Borman, R.G., and Meredith, T.S., 1983, Geology, altitude, and depth of the bedrock surface beneath the Ogallala Formation in the northern High Plains of Colorado: U.S. Geological Survey Hydrologic Investigations Atlas HA-669, scale 1:500,000, 1 sheet.

Juracek, K.E., and Hansen, C.V., 1995, Digital maps of the extent, base, and 1991 potentiometric surface of the High Plains Aquifer in Kansas: U.S. Geological Survey Open-File Report 95-758, digital data set.

Pearl, R.H., Roberts, R.S., Keene, K.M., and McClain, T.J., 1972, Water resources of northwestern Kansas: U.S. Geological Survey Hydrologic Investigations Atlas HA-429, scale 1:250,00, 2 sheets.

Pettijohn, R.A., and Chen, H.H., 1983, Geohydrology of the High Plains aquifer system in Nebraska: U.S. Geological Survey Water Resources Investigations Open-File Report 82-502, scale 1:750,000, 3 sheets.

Watts, K.R., and Stullken, L.E., 1985, Generalized configuration of the base of the High Plains aquifer in Kansas: U.S. Geological Survey Open-File Report 81-344, scale, 1:500,000, 1 sheet.


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