TY  - RPRT
TI  - Mineral resources of the Humbug Spires Instant Study Area, (primitive area and adjacent roadless areas), Silver Bow County, Montana
AU  - Harry Wynn Smedes
AU  - William F. Hanna
AU  - Michael Hamilton
PY  - 1980
DO  - 10.3133/ofr80836
UR  - https://pubs.usgs.gov/publication/ofr80836
ID  - ofr80836
ER  -