1998 Map of Glad Valley

About this map

Cheyenne River Indian Reservation and the Standing Rock Indian Reservation meet along the Corson and Ziebach county line, forming a landscape shaped by indigenous land history and federal management. The small settlement of Glad Valley serves as a local anchor near the Glad Valley Dam, where the Spillway Elev 721 manages water levels for the surrounding plains. To the northwest, the Grand River National Grassland encompasses a portion of the map, illustrating the region's dedication to prairie conservation. The topography is defined by the drainages of Twin Butte Creek and its East Fork, which carve through the high plains. Evidence of local life and labor appears in the small cemetery and a Gravel Pit, markers of the modest infrastructure required to sustain this rural South Dakota community.