TY  - RPRT
TI  - Slides showing preliminary geologic maps of the Butte 1 degree x 2 degrees Quadrangle, western Montana
AU  - C. A. Wallace
AU  - R. G. Schmidt
PY  - 1982
DO  - 10.3133/ofr82713
UR  - https://pubs.usgs.gov/publication/ofr82713
ID  - ofr82713
ER  -