Hallberg, L.L.Case, J.C.2024-03-142024-03-1410.15786/13690477https://wyoscholar.uwyo.edu/handle/internal/8721https://doi.org/10.15786/13690477Preliminary digital surficial geologic map of the Cheyenne 30' x 60' quadrangle, southeastern Wyoming, western Nebraska, and northern Coloradohttps://creativecommons.org/licenses/by/4.0/figure