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2021 Map of Grass Lake

Name: 2021 Topographic Map of Grass Lake
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Coteau des Prairies, a vast plateau of glacial origin, defines the topography of this section of Minnehaha County. The landscape is dotted with prominent wetlands and prairie basins including Grass Lake, Lost Lake, and Rehfeldt Slough. These natural features are interspersed with a strictly gridded section-line road system, typical of the Great Plains survey, which dictates the placement of rural infrastructure.

Settlement patterns center on the small community of Pumpkin Center, located at a significant rural crossroads. Local genealogy and community history are anchored by the Saint Joseph Catholic Cem and the German Methodist Cem, both of which serve as markers of the diverse European immigrant groups that established these prairie farmsteads. Waterways such as Long Cr and Beaver Cr drain the higher elevations of Rocky Ridge, threading through the agricultural grid toward the larger sloughs.