TY - RPRT TI - Leaching studies of schwertmannite-rich precipitates from the Animas River Headwaters, Colorado and Boulder River Headwaters, Montana AU - George A. Desborough AU - R. W. Leinz AU - S. J. Sutley AU - Paul H. Briggs AU - G.A. Swayze AU - K. S. Smith AU - G. N. Breit PY - 2000 DO - 10.3133/ofr004 UR - https://pubs.usgs.gov/publication/ofr004 ID - ofr004 ER -