TY  - RPRT
TI  - Geologic map of the Grand Gulch Instant Study Area, San Juan County, Utah
AU  - G. W. Weir
PY  - 1981
DO  - 10.3133/mf1318
UR  - https://pubs.usgs.gov/publication/mf1318
ID  - mf1318
ER  -