TY  - RPRT
TI  - Geologic map of the Poncha Springs Quadrangle, Chaffee County, Colorado
AU  - G. R. Scott
AU  - R. E. Van Alstine
AU  - W. N. Sharp
PY  - 1975
DO  - 10.3133/mf658
UR  - https://pubs.usgs.gov/publication/mf658
ID  - mf658
ER  -