TY  - RPRT
TI  - Geologic map of the Frederick Butte volcanic center, Deschutes and Lake Counties, south-central Oregon
AU  - J. A. Johnson
PY  - 1998
DO  - 10.3133/ofr98208
UR  - https://pubs.usgs.gov/publication/ofr98208
ID  - ofr98208
ER  -