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1955 Map of Demarcation Point D-2, 1969 Print
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1955 Map of Demarcation Point D-2

USGS Topo · Published 1969

About this map

The Beaufort Sea coastline of northern Alaska, as it appeared during the mid-1950s, is defined here by a complex system of barrier islands and shallow lagoons. This maritime landscape within the Arctic National Wildlife Range shows a delicate shoreline where the Siku Reef separates the open sea from protected waters like Icy Lagoon and Egaksrak Lagoon. The map illustrates the hydrological patterns of several major watercourses, including the Kongakut River and its expansive Delta, alongside the Aichteilik River and Egaksrak River. These rivers deposit sediment into the lagoons, creating a shifting environment accessible only through narrow openings like Siku Entrance and Egaksrak Entrance. This 1955 survey provides an essential look at the undeveloped coastal geography of the North Slope before significant modern shifts in the Arctic environment.

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Map Details

Date Portrayed1955
Date Published1969
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18.1 x 20.9 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain