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1950 Map of Blying Sound D-4

Name: 1950 Topographic Map of Blying Sound D-4
Creator: U.S. Geological Survey
Published: 1974
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1974

About this map

Maritime safety and coastal navigation define this 1950 coastal survey of the Kenai Peninsula shoreline. The map focuses on the complex waterways where the Gulf of Alaska meets the protected reaches of Port Bainbridge. Strategically positioned landforms are designated for federal use, most notably the Pt Elrington Lighthouse Reserve and the Lonetree Pt Lighthouse Reserve, which secured vital points for navigational aids at the entrance to Elrington Passage.

The landscape is characterized by steep islands and deep-water inlets, including the rugged southern tip of Elrington Island and the neighboring Evans Island. These landforms created critical shelter for vessels moving between the open Pacific Ocean and the inner sounds. Local coastal features like Goat Harbor and the symmetrical North Twin Bay and South Twin Bay provided essential reference points for early mid-century mariners navigating the Chugach National Forest coastline.