Sheridan County, Wyoming: Geologic Map Atlas and Summary of Land, Water and Mineral Resources (1978)

Lageson, D.R., Ver Ploeg, A.J., Glass, G.B., Hausel, W.D., Breckenridge, R.M., Gaylord, D.R., Marrs, R.W., King, J.K., and Madina, A.L., 1978, Sheridan County, Wyoming—Geologic map atlas and summary of land, water and mineral resources: Geological Survey of Wyoming [Wyoming State Geological Survey] County Resource Series 5, 9 pls.