TY  - RPRT
TI  - Geologic map of the Summitville mining district of Colorado
AU  - T. A. Steven
AU  - J.C. MacLachlan
PY  - 1953
DO  - 10.3133/ofr53250
UR  - https://pubs.usgs.gov/publication/ofr53250
ID  - ofr53250
ER  -