TY  - RPRT
TI  - Preliminary map of plutonic units of the Boulder batholith, southwestern Montana
AU  - Harry Wynn Smedes
AU  - Montis Ruhl Klepper
AU  - Robert I. Tilling
PY  - 1988
DO  - 10.3133/ofr88283
UR  - https://pubs.usgs.gov/publication/ofr88283
ID  - ofr88283
ER  -