TY  - RPRT
TI  - Geologic map of the Montrose 30' x 60' Quadrangle, southwestern Colorado
AU  - T. A. Steven
AU  - W. J. Hail
PY  - 1989
DO  - 10.3133/i1939
UR  - https://pubs.usgs.gov/publication/i1939
ID  - i1939
ER  -