Using water-quality profiles to characterize seasonal water quality and loading in the upper Animas River basin, southwestern Colorado / by Kenneth J. Leib, M. Alisa Mast, and Winfield G. Wright ; prepared in cooperation with the Bureau of Land Management
Also available from GPO's Permanent Public Access Server. Address as of 08/5/08: http://permanent.access.gpo.gov/waterusgsgov/water.usgs.gov/pubs /wri/wri024230/pdf/WRIR02-4230.pdf ; current access available via PURL.