TY - RPRT TI - Geophysical data from the Blacktail Mountain drilling site, Flathead County, Montana AU - Louis J. O’Connor AU - B. D. Smith AU - James Henry Scott PY - 1979 DO - 10.3133/ofr79940 UR - https://pubs.usgs.gov/publication/ofr79940 ID - ofr79940 ER -