1. Miocene sediment dispersal for western Nebraska and south-eastern Wyoming;Bart;: Contributions to Geology (Copenhagen),1975
2. Mesozoic-Cenozoic unroofing of the southern Appalachian Basin: Apatite fission track evidence from Middle Pennsylvanian sandstones;Boettcher;The Journal of Geology,1994
3. Late Cenozoic history of the Northern Colorado Front Range;Bolroyd,1997
4. The Ogallala aquifer in the Northern High Plains of Colorado-saturated thickness in 1980; saturated-thickness changes, predevelopment to 1980; hydraulic conductivity; specific yield; and predevelopment and 1980 probable well yields;Boreman;U.S. Geological Survey Hydrologic Investigations,1983
5. Geology, altitude, and depth of the bedrock surface; altitude of the water table in 1980; and saturated thickness of the Ogallala aquifer in 1980 in the southern High Plains of Colorado;Boreman;U.S. Geological Survey Hydrologic Investigations,1984