TY - RPRT TI - Evaluation of Metal Toxicity in Streams Affected by Abandoned Mine Lands, Upper Animas River Watershed, Colorado AU - John M. Besser AU - Ann L. Allert AU - Douglas K. Hardesty AU - Christopher G. Ingersoll AU - Thomas W. May AU - Ning Wang AU - Kenneth J. Leib PY - 2001 UR - https://pubs.usgs.gov/publication/bsr20010001 ID - bsr20010001 ER -