TY  - RPRT
TI  - Major active faults and seismicity in and near the Big Fork-Avon area, Missoula-Kalispell region, northwestern Montana
AU  - Irving J. Witkind
PY  - 1977
DO  - 10.3133/mf923
UR  - https://pubs.usgs.gov/publication/mf923
ID  - mf923
ER  -