TY - RPRT TI - Preliminary geologic map of the East Boulder Sector of the Stillwater Complex, Sweet Grass County, Montana AU - Robert R. Carlson AU - Kenneth K. Segerstrom PY - 1978 DO - 10.3133/ofr78704 UR - https://pubs.usgs.gov/publication/ofr78704 ID - ofr78704 ER -