2012 Map of Summit NE

About this map

The glacial landscape of Roberts County is defined by a complex network of wetlands and coulees in this 2012 survey. Spring Grove and the nearby Old Ascension Cem serve as primary points of interest for genealogists and local historians tracking the early settlement patterns of the Old Agency District. The terrain is notably dissected by Big Spring Cr and Big Coulee Cr, which flow through the undulating plains toward the prominent depression of Big Coulee. This modern topographic study illustrates the persistence of rural infrastructure, from the small-scale Whipple Ranch Airport to the grid of Indian Routes and section roads. The southern edge of the quadrangle is marked by Mollie Lake, one of many prairie potholes that characterize the hydrology of this northeastern South Dakota region.