TY  - RPRT
TI  - Preliminary geologic map of the Grand Valley Quadrangle, Garfield County, Colorado
AU  - J. R. Donnell
AU  - W. E. Yeend
AU  - M. C. Smith
PY  - 1986
DO  - 10.3133/mf1883
UR  - https://pubs.usgs.gov/publication/mf1883
ID  - mf1883
ER  -