TY - RPRT TI - Stratigraphic cross section B - B' showing electric logs of Upper Cretaceous and older rocks, Powder River Basin, Big Horn, Powder River and Carter Counties, Montana, and Sheridan County, Wyoming AU - James E. Fox PY - 1986 DO - 10.3133/ofr86465b UR - https://pubs.usgs.gov/publication/ofr86465B ID - ofr86465B ER -