Preliminary Surficial Geologic Map of the Midwest 30' x 60' Quadrangle, Natrona, Converse, and Johnson Counties, Wyoming (2003)

Hallberg, L.L., and Case, J.C., 2003, Preliminary surficial geologic map of the Midwest 30' x 60' quadrangle, Natrona, Converse, and Johnson counties, Wyoming: Wyoming State Geological Survey Open File Report 03-5, 8 p., 1 pl., scale 1:100,000.