1971 Map of Thunder Bay Island, 1974 Print
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1971 Map of Thunder Bay Island

USGS Topo · Published 1974

About this map

Thunder Bay Island and its neighboring landforms emerge from the waters of Lake Huron in this survey of the northeastern Michigan coastline. This island group within Alpena Twp is defined by a landscape of shallow shoals and isolation, anchored by a historic Lighthouse on the eastern tip of the primary island. The map preserves the precise mid-century topography of these islands before modern automated systems or changing lake levels altered their character.


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Map Details

Date Portrayed1971
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1971 Thunder Bay Island Map


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Source Details

CopyrightPublic Domain