TY - RPRT TI - Geochemical maps showing the distribution and abundance of selected elements in heavy-mineral concentrates of stream sediments from the Vasquez Peak Wilderness Study Area and the Williams Fork and St. Louis Peak Roadless Areas, Clear Creek, Grand, and Summit counties, Colorado AU - H. N. Barton PY - 1985 DO - 10.3133/mf1588g UR - https://pubs.usgs.gov/publication/mf1588G ID - mf1588G ER -