2021 Map of Osage SE

About this map

Thunder Basin National Grassland encompasses much of this high plains landscape, where complex drainage systems define the local topography. This part of Weston County is characterized by a dense network of seasonal and perennial waterways, including Skull Cr, Beaver Cr, and Oil Cr, which converge across the arid basin. The presence of the Shostak Reservoir and Michaels Reservoir indicates the critical importance of water management for livestock and land use in this open range. Near the settlement of Newcastle, the terrain transitions into named topographic features like Sixmile Basin and Fourmile Draw. The map documents a landscape primarily organized by long-standing rural routes such as Morrissey Rd and Eberspecher Rd, reflecting the ranching and resource-based economy that continues to shape this corner of Wyoming.