Quantification and simulation of metal loading to the upper Animas River, Eureka to Silverton, San Juan County, Colorado, September 1997 and August 1998 [electronic resource] / by Suzanne S. Paschke, Briant A. Kimball, and Robert L. Runkel ; prepared in cooperation with the Bureau of Land Management.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2005.
Mode of access: Internet at the USGS web site. Address as of 9/9/08: http://pubs.usgs.gov/sir/2005/5054/pdf/508Book.pdf ; current access is available via PURL.