TY  - RPRT
TI  - Geologic map of the Piedra Wilderness Study Area, Archuleta and Hinsdale counties, Colorado
AU  - S. M. Condon
AU  - K. J. Franczyk
AU  - A.L. Bush
PY  - 1984
DO  - 10.3133/mf1630b
UR  - https://pubs.usgs.gov/publication/mf1630B
ID  - mf1630B
ER  -