TY  - RPRT
TI  - The Sentinel Butte lignite field, North Dakota and Montana. The Miles City coal field, Montana. The Bull Mountain coal field, Montana. Coal near the Crazy Mountains, Montana. The Red Lodge coal field, Montana. The Lewistown coal field, Montana
AU  - M. R. Campbell
AU  - Arthur J. Collier
AU  - Carl D. Smith
AU  - L.H. Woolsey
AU  - R.W. Stone
AU  - W. R. Calvert
PY  - 1909
DO  - 10.3133/b341a
UR  - https://pubs.usgs.gov/publication/b341A
ID  - b341A
ER  -