TY  - RPRT
TI  - Geologic map of the Iris NW quadrangle, Gunnison and Saguache Counties, Colorado
AU  - David Carl Hedlund
AU  - Jerry Chipman Olson
PY  - 1974
DO  - 10.3133/gq1134
UR  - https://pubs.usgs.gov/publication/gq1134
ID  - gq1134
ER  -