TY  - RPRT
TI  - Preliminary geologic map of the Calamity Ridge Quadrangle, Rio Blanco County, Colorado
AU  - J. R. Donnell
AU  - W. J. Hail
PY  - 1984
DO  - 10.3133/mf1690
UR  - https://pubs.usgs.gov/publication/mf1690
ID  - mf1690
ER  -