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1948 Map of Manitou Island

Name: 1948 Topographic Map of Manitou Island
Creator: U.S. Geological Survey
Published: 1974
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1974

About this map

Manitou Island and the easternmost tip of the Keweenaw Peninsula define this maritime landscape at the mid-century. The survey, field-checked shortly after the war, documents the critical navigation aids serving the heavy shipping traffic of Lake Superior. Primary landmarks include the Gull Rock Lighthouse and the Manitou Island LH, which sat at a strategic turn for vessels heading toward the Soo Locks or Duluth.

The rugged, unpopulated terrain of Grant township is marked by isolated water bodies like Schlatter Lake and Gill Lake, and defined by its jagged shoreline from Keweenaw Point up to High Rock Bay. On the island itself, small inland features such as Perch Lake and the sheltered Fishermans Bay provided rare refuge in a region otherwise dominated by a single Telephone Line—the only sign of modernization in this remote wilderness.