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2014 Map of Todd Harbor

Name: 2014 Topographic Map of Todd Harbor
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

Isle Royale National Park occupies this portion of Lake Superior, dominated by the parallel rises of Minong Ridge and the prominent Greenstone Ridge. This northern wilderness is defined by its complex shoreline and interior basins, where elevations reach a peak at Mt Siskiwit. The map reveals a landscape of high ridges separated by elongated water bodies like Hatchet Lake and Lake Harvey, reflecting the glacial carving of the island's volcanic bedrock.

Along the coast, the topography creates protected waters and navigational landmarks such as Todd Harbor, Florence Bay, and Pickett Bay. Numerous small landmasses dot the coast and interior waters, including Wilson Island, Taylor Island, and Ryan Island, which sits within the large expanse of Siskiwit Lake. This survey provides a contemporary record of the island's undeveloped character and its structural geological alignment.