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2015 Map of Clear Lake

Name: 2015 Topographic Map of Clear Lake
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

The Illinois River and Sangamon River converge in this floodplain landscape where the borders of Schuyler, Cass, and Mason counties meet. The complex hydrology of the region is defined by an intricate network of secondary waterways, including the Little Sangamon River, Bach Slough, and Wood Duck Slough. These channels carve out landforms like Knapps Island and Cuba Island, creating a sanctuary of backwater lakes such as Mound Lake and Crane Lake.

Upland areas to the south contrast sharply with the river bottomlands, rising toward the bluffs along Chandlerville Rd. For genealogists, the map identifies several local burial sites, including Wells Cem, Hager Cem, Carr Cem, and Beard Cem, providing specific locations for family history research. The small settlement of Clear Lake and its namesake water body serve as central landmarks in a territory shaped by seasonal water movement and drainage features like Phelps Ditch Rd.