Preliminary Surfical Geologic Map of the Basin 30’ x 60’ Quadrangle, Big Horn, Park, Washakie and Hot Springs Counties, Wyoming (2003)

Hallberg, L.L., and Case, J.C., 2003, Preliminary surficial geologic map of the Basin 30' x 60' quadrangle, Big Horn, Park, Washakie, and Hot Springs counties, Wyoming: Wyoming State Geological Survey Open File Report 03-6, scale 1:100,000.