TY  - RPRT
TI  - Geologic framework and environmental geology of the Summitville, Colorado acid-sulfate mineral deposit
AU  - J. E. Gray
AU  - M.F. Coolbaugh
AU  - G.S. Plumlee
PY  - 1993
DO  - 10.3133/ofr93677
UR  - https://pubs.usgs.gov/publication/ofr93677
ID  - ofr93677
ER  -