2012 Map of Clear Lake North

About this map

Glacial prairie potholes and interconnected wetlands dominate this portion of Deuel County, centered on the Coteau des Prairies. North Coteau Lake, South Coteau Lake, and East Coteau Lake form a central cluster of water bodies, reflecting the distinct topography of the region. The small community of Altamont sits to the north, while the northern outskirts of the county seat are visible at Clear Lake near the southern boundary. This 2012 survey illustrates a landscape of agricultural section lines and localized infrastructure, including the Clear Lake Municipal Airport and the local Po. The drainage pattern is defined by features like Monighan Cr and isolated basins such as Lake Alice and Ketchum Lake, which illustrate the post-glacial hydrologic network of eastern South Dakota.