TY - RPRT TI - Photogeologic and reconnaissance geologic map of the Montague Butte Quadrangle, Custer County, Montana AU - S. J. Luft AU - R. B. Colton PY - 1984 DO - 10.3133/mf1704 UR - https://pubs.usgs.gov/publication/mf1704 ID - mf1704 ER -