2021 Map of Twentyone Creek

Human presence is sparse and largely confined to the corridor of Grass Creek Road in the northwest, suggesting an area primarily used for ranching or resource management rather than dense settlement. Large open areas like Putney Flat and the depressions of Egbert Draw and Dugout Draw illustrate the vast, open topography of Wyoming's interior, providing a clear record of the natural landforms before any modern development might alter these traditional drainage patterns.