Digital Stratigraphic and Structural Grids of the Cretaceous Lewis Shale in the Eastern Part of the Southwestern Wyoming Province, Wyoming and Colorado

This data release contains data associated with the Lewis Shale-Fox Hills Sandstone-Lance Formation depositional system (also referred to as the Lewis Shale system) in the eastern part of the Southwestern Wyoming Province of Wyoming and Colorado. Specifically, the data cover the Great Divide, Washakie, and Sand Wash Basins, the Wamsutter and Cherokee arches, and the Rock Springs Uplift. The Lewis Shale is underlain by the Almond Formation, overlain by the Fox Hills Sandstone, and interfingers with both formations on a regional scale. The Lewis Shale is divided into a lower, informal member, a middle, formal Dad Sandstone Member, and an upper, informal member. At the top of the lower Lewis member, there is a maximum flooding surface [...]