Index to Selected U.S. Geological Survey Professional Papers that contain Geologic Maps for Wyoming (1989)

Greer, P.L., and Ver Ploeg, A.J., 1989, Index to selected U.S. Geological Survey professional papers that contain geologic maps for Wyoming: Geological Survey of Wyoming [Wyoming State Geological Survey] Map Series 9H, scale 1:1,000,000. (Revised from De Bruin, R.H., 1984.)