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1952 Map of Cordova B-3

Name: 1952 Topographic Map of Cordova B-3
Creator: U.S. Geological Survey
Published: 1974
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1974

About this map

The Martin River Delta dominates this coastal landscape, where the glacial silt of the Copper River meets the Gulf of Alaska. Photogrammetric methods from 1950 capture a complex network of shifting waterways, including Long Island Channel, Hotcake Channel, and the Kokinhenik Branch. These channels weave between massive tidal deposits of mud and sand, illustrating the dynamic nature of the deltaic environment in the early 1950s.

Inland from the coastline, the terrain transitions from the low-lying Long Island to the higher elevations of the Chugach National Forest. Notable landmarks such as the Saddlebag Glacier and Flag Point stand as permanent fixtures amidst the ever-changing sloughs like Castle Island Slough and Storey Slough. A single Highway provides a rare point of terrestrial passage through this marshy wilderness, connecting the remote shoreline at Cottonwood Pt and Kokinhenik I to the interior.