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1955 Map of Ketchikan B-1, 1959 Print
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1955 Map of Ketchikan B-1

USGS Topo · Published 1959

About this map

The Portland Canal serves as the international boundary between the United States and Canada in this mid-century survey of Southeast Alaska. This maritime frontier is defined by the steep slopes of the Rousseau Range and the Peabody Mountains, all contained within the Tongass National Forest. The map documents a series of reference monuments, such as Ref Mon S-19 and Ref Mon S-20, which mark the precise geopolitical line through these waters.

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Map Details

Date Portrayed1955
Date Published1959
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions17 x 20.8 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain