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1963 Map of Outer Island, 1980 Print
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1963 Map of Outer Island

USGS Topo · Published 1980

About this map

Outer Island stands as a solitary landmass surrounded by the deep waters of Lake Superior in this mid-century survey. Located at the northern reaches of the Apostle Islands, the terrain is defined by its isolation and the critical navigational aid of the Outer Island Light on its northern tip. The map documents the island's survey grid, established via the Fourth Principal Meridian, and reveals a shoreline shaped by Austad Bay and the prominent southern hook of Sand Point. This 1963 data, later photoinspected in the 1970s, captures the island before modern environmental shifts, noting treacherous underwater features like Outer Island Shoal and the specific mean lake elevation of 602 feet. For the maritime historian or local researcher, the document provides an exact look at the island's topography and soundings during a period of transition for Great Lakes navigational standards.

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Map Details

Date Portrayed1963
Date Published1980
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions15.82 x 22.08 inches

Editions of this 1963 Outer Island Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain