Integrated investigations of environmental effects of historical mining in the Animas River watershed, San Juan County, Colorado [electronic resource] / edited by Stanley E. Church, Paul von Guerard, and Susan E. Finger ; prepared in cooperation with the U.S. Department of Agriculture Forest Service, U.S. Bureau of Land Management, U.S. Environmental Protection Agency.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2007.