TY  - RPRT
TI  - Geologic and geochemical maps of the West Needle Wilderness Study Area, San Juan and La Plata counties, Colorado
AU  - R. E. Van Loenen
PY  - 1985
DO  - 10.3133/mf1632b
UR  - https://pubs.usgs.gov/publication/mf1632B
ID  - mf1632B
ER  -