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Author/Creator
- Geological Survey (U.S.)6
- Apodaca, Lori Estelle1
- Appel, Cynthia L.1
- Burns, Douglas A., 1956-1
- Butler, David L. (David Louis), 1946-1
- Choquette, Anne F.1
- Colorado River Water Conservation District (Colo.)1
- Colorado. Office of the State Engineer1
- Frenzel, Peter F.1
- Kircher, J. E.1
- Litke, David W.1
- Lyford, Forest P.1
- National Water-Quality Assessment Program (U.S.)1
- New Mexico. Bureau of Mines and Mineral Resources1
- New Mexico. State Engineer Office1
- Richter, Brian D.1
- Rocky Mountain National Park (Agency : U.S.)1
- United States. Bureau of Land Management1