1. Alluvial and bedrock aquifers of the Denver basin-eastern Colorado's dual ground-water resources Author/Creator: Robson, Stanley G. Publication/Creation: Denver, CO : Dept. of the Interior, U.S. Geological Survey ; [Washington, D.C.] : U.S. G.P.O., 1988 Resource Type: Book Access & Availability: Loading
2. Analytical and numerical simulation of the steady-state hydrologic effects of mining aggregate in hypothetical sand-and-gravel and fractured crystalline-rock aquifers Author/Creator: Arnold, L. R. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
3. Analytical and numerical simulation of the steady-state hydrologic effects of mining aggregate in hypothetical sand-and-gravel and fractured crystalline-rock aquifers Author/Creator: Arnold, L. R. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading