TY - RPRT TI - Geochemical data from waters in Prospect Gulch, San Juan County, Colorado, that span pre- and post-Lark Mine remediation AU - Raymond H. Johnson AU - Douglas B. Yager AU - Hugh D. Johnson PY - 2011 DO - 10.3133/ofr20111316 UR - https://pubs.usgs.gov/publication/ofr20111316 ID - ofr20111316 ER -