1. Shallow ground water in the Boulder-Fort Collins-Greeley area, Front Range urban corridor, Colorado, 1975-77 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Lakewood, Colorado : U.S. Department of the Interior, U.S. Geological Survey, 1983 Format: Map Access & Availability: Loading
2. Surface-water resources of the Columbia Plateau in parts of Washington, Oregon and Idaho Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1991 Format: Map Access & Availability: Loading