TY  - RPRT
TI  - Reconnaissance geologic map of the Ridgway Quadrangle, Ouray County, Colorado
AU  - W. J. Hail
PY  - 1989
DO  - 10.3133/mf2100
UR  - https://pubs.usgs.gov/publication/mf2100
ID  - mf2100
ER  -