TY  - RPRT
TI  - Photogeologic map of the Elk Ridge 12 quadrangle, San Juan County, Utah
AU  - Robert J. Hackman
PY  - 1952
DO  - 10.3133/ofr5262
UR  - https://pubs.usgs.gov/publication/ofr5262
ID  - ofr5262
ER  -