TY  - RPRT
TI  - Geologic map of the Madison Roadless Area, Gallatin and Madison counties, Montana
AU  - R. G. Tysdal
AU  - F. S. Simons
PY  - 1985
DO  - 10.3133/mf1605b
UR  - https://pubs.usgs.gov/publication/mf1605B
ID  - mf1605B
ER  -