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1958 Map of Tyonek C-6, 1974 Print
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1958 Map of Tyonek C-6

USGS Topo · Published 1974

About this map

Triumvirate Glacier and Trimble Glacier dominate this interior Alaskan landscape, their massive icy flows joined by a complex network of crevasses and glacial meltwater. The drainage pattern is defined by the Trimble River, which is fed by the converging waters of the North Branch and South Branch. This mid-century survey captures the region during a period of extensive aerial photogrammetric mapping by the U.S. Geological Survey, documenting the high-altitude terrain before significant modern shifts in glacial margins.

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Map Details

Date Portrayed1958
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18.1 x 21.8 inches

Editions of this 1958 Tyonek C-6 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain