TY - RPRT TI - Critical deep drillholes and indicated Paleozoic Paleotectonic features north of the Snake River downwarp in southern Beaverhead County, Montana, and adjacent Idaho AU - W. J. Perry PY - 1986 DO - 10.3133/ofr86413 UR - https://pubs.usgs.gov/publication/ofr86413 ID - ofr86413 ER -