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1958 Map of Tyonek A-8, 1965 Print
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1958 Map of Tyonek A-8

USGS Topo · Published 1965

About this map

Chakachamna Lake and Kenibuna Lake dominate this glacial landscape in the late 1950s, serving as the primary drainage catchments for a complex network of ice and meltwater. The topography is defined by the massive Shamrock Glacier, which descends into the valley between these two major water bodies. Large fields of crevasses are explicitly marked across the glacial surface, indicating the active flow and dangerous terrain of the era. The hydrology of the region is fed by the Chilligan River to the north and the Neacola River and Igitna River to the west, illustrating how these waterways carve through the mountain passes. This survey, based on aerial photography from 1954 and 1957, captures the pristine state of the Alaskan interior before modern development or significant shifts in glacial extent.

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Map Details

Date Portrayed1958
Date Published1965
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions17 x 20.8 inches

Editions of this 1958 Tyonek A-8 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain