Hallberg, L.L.Case, J.C.2024-03-142024-03-1410.15786/13690201https://wyoscholar.uwyo.edu/handle/internal/8659https://doi.org/10.15786/13690201Preliminary surficial geologic map of the Sundance 30' x 60' quadrangle, Crook and Weston counties, Wyoming, and southwestern South Dakotahttps://creativecommons.org/licenses/by/4.0/Preliminary surficial geologic map of the Sundance 30' x 60' quadrangle, Crook and Weston counties, Wyoming, and southwestern South Dakotafigure