TY  - RPRT
TI  - The southern extension of the Milk River coal field, Chouteau County, Montana. The Livingston and Trail Creek coal fields, Park, Gallatin, and Sweet Counties, Montana. The Electric coal field, Park County, Montana
AU  - L.J. Pepperberg
AU  - W. R. Calvert
PY  - 1912
DO  - 10.3133/b471e
UR  - https://pubs.usgs.gov/publication/b471E
ID  - b471E
ER  -