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2023 Map of Passage Island OE N

Name: 2023 Topographic Map of Passage Island OE N
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Lake Superior dominates this maritime survey, covering the vast waters north of Michigan's Keweenaw Peninsula. The map highlights a critical international boundary between the United States and Canada, which cuts diagonally across the open water. This boundary line marks the northernmost reach of American territory in the region, separating the remote reaches of the Great Lakes.

In the southeastern corner, the small Gull Islands emerge as the most prominent land features within the protected confines of Isle Royale National Park and the Isle Royale Wilderness. This area represents the rugged, uninhabited northern edge of the archipelago, where the landscape is defined by the Public Land Survey System designations of t68n r31w and t68n r32w. The survey provides a clear view of how political and conservation borders intersect in the middle of the lake.