TY  - RPRT
TI  - Generalized geologic map of the Butte 1 degree by 2 degrees Quadrangle, Montana
AU  - C. A. Wallace
PY  - 1987
DO  - 10.3133/mf1925
UR  - https://pubs.usgs.gov/publication/mf1925
ID  - mf1925
ER  -