TY  - RPRT
TI  - Preliminary geologic map of Greasewood Gulch Quadrangle, Rio Blanco County, Colorado
AU  - D.C. Duncan
PY  - 1976
DO  - 10.3133/mf755
UR  - https://pubs.usgs.gov/publication/mf755
ID  - mf755
ER  -