TY - RPRT TI - Use of natural and applied tracers to guide targeted remediation efforts in an acid mine drainage system, Colorado Rockies, USA AU - Rory Cowie AU - Mark W. Williams AU - Mike Wireman AU - Robert L. Runkel PY - 2014 DO - 10.3390/w6040745 UR - https://pubs.usgs.gov/publication/70126514 ID - 70126514 ER -