1966 Map of Joe Creek SW

About this map

The Lower Brule Indian Reservation Boundary stretches across the southern portion of this mid-1960s landscape, marking the transition between tribal lands and the surrounding Lyman County terrain. This survey reflects a significant period for the Missouri River basin, following the creation of Lake Sharpe, which appears here at its normal operating pool elevation. The topography is defined by the drainage systems of the South Fork Cedar Creek and Grouse Creek, showing the complex network of draws and ridges that characterize the region. While the area is largely undeveloped, the presence of Dorman in the southeast corner and the specific reservation boundary lines offer critical reference points for understanding historical land tenure and tribal geography in central South Dakota.