TY  - RPRT
TI  - Measured sections and correlations of mid-Cretaceous rocks near the Lombard thrust of the Helena Salient in southwestern Montana
AU  - T. S. Dyman
AU  - R. G. Tysdal
AU  - K. W. Porter
AU  - G. A. Thompson
PY  - 1995
DO  - 10.3133/ofr95841
UR  - https://pubs.usgs.gov/publication/ofr95841
ID  - ofr95841
ER  -