TY - RPRT TI - Regional sampling of waters and sediments variably impacted by mine drainage in the Denver West 1:100,000 Quadrangle, October, 1994; preliminary data AU - Sigrid Asher-Bolinder PY - 1995 DO - 10.3133/ofr95804a UR - https://pubs.usgs.gov/publication/ofr95804A ID - ofr95804A ER -