TY  - RPRT
TI  - Preliminary Geologic map of the Cougar quadrangle, Cowlitz and Clark counties, Washington
AU  - R.C. Evarts
AU  - R. P. Ashley
PY  - 1990
DO  - 10.3133/ofr90631
UR  - https://pubs.usgs.gov/publication/ofr90631
ID  - ofr90631
ER  -