TY  - RPRT
TI  - Geologic map of the Spring Hill Creek Quadrangle, Saguache County, Colorado
AU  - J. C. Olson
AU  - T. A. Steven
AU  - D. C. Hedlund
PY  - 1975
DO  - 10.3133/mf713
UR  - https://pubs.usgs.gov/publication/mf713
ID  - mf713
ER  -