TY - RPRT TI - Stratigraphic cross section H - H' showing electric logs of Upper Cretaceous and older rocks; Powder River Basin, Johnson, Campbell, and Crook Counties, Wyoming AU - James E. Fox PY - 1987 DO - 10.3133/ofr86465h UR - https://pubs.usgs.gov/publication/ofr86465H ID - ofr86465H ER -