TY  - RPRT
TI  - Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Mount Big Chief-Cheyenne Mountain Quadrangles, El Paso, Teller, and Fremont counties, Colorado
AU  - P. W. Schmidt
PY  - 1979
DO  - 10.3133/mf1065
UR  - https://pubs.usgs.gov/publication/mf1065
ID  - mf1065
ER  -