TY - RPRT TI - Surface and underground geologic map of the DeCourcy Mountain mine, DeCourcy Mountain area, central Kuskokwim region, Alaska AU - Edward J. Webber PY - 1955 DO - 10.3133/ofr55190 UR - https://pubs.usgs.gov/publication/ofr55190 ID - ofr55190 ER -