1970 Map of Summit NE

About this map

The rolling prairies of the Sisseton Wahpeton Reservation area come into focus through the topography of Spring Grove and Summit townships. This 1970 landscape is defined by the sharp descent into Big Coulee, where numerous springs and drainage patterns contrast with the high, lake-dotted plateau to the west. Central to the local heritage of this region is the Ascension Ch and the adjacent Old Ascension Cem, which serve as permanent landmarks of the community's spiritual and genealogical history. The presence of Gravel Pits along the eastern slopes suggests the geological utility of the glacial drift common in Roberts County. Scattered water bodies like Hurricane Lake and Mollie Lake punctuate the southern sections, illustrating the prairie pothole character of the northeastern South Dakota terrain before modern agricultural drainage significantly altered the surface hydrology.