2015 Map of Angostura Reservoir

About this map

Angostura Reservoir and the Cheyenne River dominate this modern topographical record of Fall River County, where the plains meet the rising elevations of the Black Hills National Forest. The landscape is defined by a dense network of drainages and named breaks including Knappie Canyon, Red Canyon, and Adams Canyon, which carve through the terrain toward the reservoir's eastern and western shores. High points like Tepee Mtn stand above the surrounding draws, such as Horse Camp Draw, illustrating the complex drainage patterns of the southern Black Hills region.