Geologic Map of the Bill 30' x 60' Quadrangle, Converse, Campbell, and Weston Counties, Wyoming (2007)

Gregory, R.W., and Micale, D.C., 2007, Geologic map of the Bill 30' x 60' quadrangle, Converse, Campbell, and Weston counties, Wyoming: Wyoming State Geological Survey Map Series 72, 1 sheet, scale 1:100,000.