2017 Map of Big Stone Lake SE

About this map

Big Stone Lake forms the primary geographic boundary at the northeastern corner of this landscape, separating South Dakota from Minnesota. This section of Grant County and Roberts County is defined by the wandering path of the Whetstone River, which meanders eastward toward the lake through a series of dramatic bends. The confluence of the N Fork Whetstone River and the southern fork illustrates the natural drainage patterns of this prairie region. Notable landforms within the lake itself include Goose Island and Manhattan Island, which sit just offshore from the South Dakota side. The surrounding upland is organized by a strict section-line road grid, including routes like Eagle View Lake Rd and Frevert Farm Rd, reflecting the enduring agricultural character of the region as it transitioned into the early twenty-first century.