2024-03-142024-03-1410.15786/13687579https://wyoscholar.uwyo.edu/handle/internal/7849https://doi.org/10.15786/13687579Geology of Keyhole State Parkhttps://creativecommons.org/licenses/by/4.0/Keyhole State ParkBlack HillsCrook CountyWyomingfigure