TY  - RPRT
TI  - Preliminary geologic map of the Fort Logan Quadrangle, Jefferson, Denver, and Arapahoe counties, Colorado
AU  - R. M. Lindvall
PY  - 1976
DO  - 10.3133/mf831
UR  - https://pubs.usgs.gov/publication/mf831
ID  - mf831
ER  -