TY  - RPRT
TI  - Preliminary geologic map of the Hermosa Peak Quadrangle, Dolores, San Juan, La Plata, and Montezuma counties, Colorado
AU  - Walden P. Pratt
PY  - 1976
DO  - 10.3133/ofr76314
UR  - https://pubs.usgs.gov/publication/ofr76314
ID  - ofr76314
ER  -