TY  - RPRT
TI  - Preliminary report on the engineering geology of the Eldorado Springs quadrangle, Boulder and Jefferson Counties, Colorado
AU  - Maxwell E. Gardner
PY  - 1969
DO  - 10.3133/ofr69102
UR  - https://pubs.usgs.gov/publication/ofr69102
ID  - ofr69102
ER  -