TY - RPRT TI - Mining-impacted sources of metal loading to an alpine stream based on a tracer-injection study, Clear Creek County, Colorado AU - David L. Fey AU - Laurie Wirt PY - 2007 DO - 10.1130/2007.4017(05) UR - https://pubs.usgs.gov/publication/70142173 ID - 70142173 ER -