TY  - RPRT
TI  - Stratigraphy and depositional environment of nonmarine facies of Frontier Formation, Eastern Pioneer Mountains, southwestern Montana
AU  - T. S. Dyman
AU  - R. G. Tysdal
PY  - 1998
UR  - https://pubs.usgs.gov/publication/70020923
ID  - 70020923
ER  -