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1970 Map of Dewey Marsh

Name: 1970 Topographic Map of Dewey Marsh
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

Dewey Marsh dominates this landscape along the border of Marathon and Portage counties, creating a complex wetland environment where the Little Eau Claire River and Hay Meadow Creek converge. The topography of 1970 reveals a fascinating mix of low-lying marshland and abrupt glacial rises. One of the most distinctive features is the Philippine Islands, a series of small landforms rising out of the marsh waters, while to the northeast, Blackberry Hill stands as a prominent high point.

Settlement patterns are concentrated along rural routes like Locker Road and Sandy Creek Rd, with the community of Rocky Corners and the area near Ashley serving as local hubs. Economic activity is visible through the numerous Quarries dotting the hillsides, particularly near the Quarry Lookout Tower. This survey preserves the rural character of Guenther before significant modern development, showing the drainage networks of Johnson Creek and the winding course of the Eau Claire River.