TY  - RPRT
TI  - Preliminary geologic map of parts of the Butte 1 p? sx 2 p? Quadrangle, central Montana
AU  - C. A. Wallace
AU  - R. G. Schmidt
AU  - M. R. Waters
AU  - D. J. Lidke
AU  - A. B. French
PY  - 1981
DO  - 10.3133/ofr811030
UR  - https://pubs.usgs.gov/publication/ofr811030
ID  - ofr811030
ER  -