Geologic Map of the Midwest 30' x 60' Quadrangle, Natrona, Converse, Johnson, and Campbell Counties, Wyoming (2007)

Wittke, S.J., 2007, Geologic map of the Midwest 30' x 60' quadrangle, Natrona, Converse, Johnson, and Campbell counties, Wyoming: Wyoming State Geological Survey Map Series 73, scale 1:100,000.