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1963 Map of False Pass D-0, 1972 Print
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1963 Map of False Pass D-0

USGS Topo · Published 1972

About this map

Outer Iliasilk Island and the scattered outcroppings of the Pacific Ocean dominate this maritime survey of the Aleutian waters. Grounded in data from mid-century aerial photography and hydrographic charts, the map reveals a treacherous coastal environment defined by submerged hazards and isolated landmasses. Navigational landmarks like Pinnacle Rock and the extensive Sandman Reefs are meticulously positioned, reflecting the critical importance of these features for seafaring safety in the late 1950s and early 1960s. Small, named islands such as Sushilnoi Island and Rose Island emerge from the depth contours, while named obstructions like Olga Rock and John Rock sit as solitary sentinels in the open sea. This documentation provides a precise record of the shoreline and depth soundings as they were recorded before later 20th-century revisions.

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Map Details

Date Portrayed1963
Date Published1972
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions23 x 20.8 inches

Editions of this 1963 False Pass D-0 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain