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1951 Map of Unalaska

Name: 1951 Topographic Map of Unalaska
Creator: U.S. Geological Survey
Published: 1956
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1956

About this map

Unalaska and Dutch Harbor serve as the primary hubs on this post-war survey of the eastern Fox Islands. The map illustrates a landscape shaped by military activity and maritime geography, prominently featuring the U.S. Naval Reserve and an extensive Air Force Base near Fort Glenn on Umnak Island. These installations highlight the strategic importance of the Aleutian Islands during the mid-20th century, even as small settlements like Makushin, Chernofski, and Biorka maintain their presence on the coast.

The archipelago is defined by deep fjords and narrow passages such as Beaver Inlet and Udagak Strait. Inlets like Captain's Bay and Iliuliuk Bay provide sheltered anchorage within the complex shoreline of Unalaska Island. The transition from World War II era reconnaissance is evident in the detailed hydrography and the military reservation boundaries that remained significant through the mid-1950s.