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1985 Map of Todd Harbor, 1994 Print
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1985 Map of Todd Harbor

USGS Topo · Published 1994

About this map

Isle Royale National Park dominates this mid-1980s mid-scale survey, showing the wilderness archipelago of Keweenaw County isolated in the waters of Lake Superior. The topography is defined by the parallel elevations of Greenstone Ridge and Minong Ridge, which create a landscape of elongated inland water bodies such as Siskiwit Lake and Sargent Lake. These ridges also form the sheltered harbors of Rock Harbor and Todd Harbor that characterize the coastline.

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Map Details

Date Portrayed1985
Date Published1994
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:100,000
Physical Dimensions36 x 24.1 inches

Editions of this 1985 Todd Harbor Map

Historical Maps of Houghton Township Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain