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1985 Map of Siskiwit Bay, 1994 Print
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1985 Map of Siskiwit Bay

USGS Topo · Published 1994

About this map

Isle Royale National Park dominates the landscape of this 1980s-era topographical record, showing the complex chain of ridges and harbors that define the southern portion of the island in Lake Superior. The terrain is characterized by parallel formations such as Greenstone Ridge and Minong Ridge, which enclose significant interior water bodies like Siskiwit Lake and Lake Desor. These geologic features are crucial for understanding the wilderness character and natural history of the Keweenaw region.

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Map Details

Date Portrayed1985
Date Published1994
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:100,000
Physical Dimensions40.55 x 24.17 inches

Editions of this 1985 Siskiwit Bay Map

Historical Maps of Houghton Township Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain