TY - RPRT TI - Stratigraphic diagrams with electric logs of Upper Cretaceous rocks, Powder River basin, Natrona, Converse, and Niobrara Counties, Wyoming, section C-C' AU - E.A. Merewether AU - W. A. Cobban AU - R.M. Matson AU - W.J. Magathan PY - 1977 DO - 10.3133/oc75 UR - https://pubs.usgs.gov/publication/oc75 ID - oc75 ER -