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1955 Map of Demarcation Point D-2

Name: 1955 Topographic Map of Demarcation Point D-2
Creator: U.S. Geological Survey
Published: 1988
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1988

About this map

The Arctic National Wildlife Refuge Wilderness shoreline meets the Beaufort Sea in this remote Arctic survey. The landscape is defined by the complex aquatic systems of the Kongakut River Delta and the meandering paths of the Aichilik River and Egaksrak River. These waterways feed into a series of coastal barriers, including Nuvagapak Lagoon and Egaksrak Lagoon, which are separated from the open sea by narrow landforms.

Insights into the northern coastal geography are found in the tidal openings like Egaksrak Entrance and Siku Entrance near Siku Point. These natural breaks in the barrier islands allow for the exchange of water between the lagoons and the ocean. The presence of the Refuge Boundary and the North Slope Borough line underscores the administrative framework over this undeveloped wilderness, where elevation markers like VABM Delta 14 serve as rare fixed points on the shifting deltaic terrain.