TY  - RPRT
TI  - Geologic map and cross section of the Wallrock quadrangle, Gallatin and Park Counties, Montana
AU  - Betty Skipp
PY  - 1977
DO  - 10.3133/gq1402
UR  - https://pubs.usgs.gov/publication/gq1402
ID  - gq1402
ER  -