2017 Map of Summit

About this map

Summit occupies a unique position atop the Coteau des Prairies, a high plateau that dominates this region of northeastern South Dakota. The landscape is defined by the high density of glacial prairie potholes and larger water bodies like Mollie Lake and Summit Lake, which sit at the headwaters of significant drainage systems. The Big Sioux River and Indian River both find their sources in these highlands, carving their initial paths through the surrounding plains. Human history is anchored in the town site and several local burial grounds, including Summit Cem and Hope Lutheran Cem, while the boundary line between Roberts Co and Grant Co cuts directly through the terrain. The map records a grid of rural roads like 144th St and 457th Ave that connect isolated farms to the central settlement.