1. Hydrogeology of and potential mining impacts on strippable lignite areas in the Denver aquifer, east-central Colorado Author/Creator: Driver, Nancy E., author Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1986 Format: Book Access & Availability: Loading
2. Hydrogeology of the Leadville Limestone and other Paleozoic rocks in northwestern Colorado, with results of aquifer tests at Glenwood Springs Author/Creator: Geldon, Arthur L., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1989 Format: Book Access & Availability: Loading
3. Hydrologic-information needs for oil-shale development, northwestern Colorado Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1982 Format: Book Access & Availability: Loading