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1971 Map of Philip Smith Mountains D-4, 1974 Print
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1971 Map of Philip Smith Mountains D-4

USGS Topo · Published 1974

About this map

The Sagavanirktok River dominates the eastern edge of this 1970s North Slope survey, a massive braided waterway that historically served as a critical corridor for northern transit. This specific era of Alaskan mapping records the landscape as it appeared just as modern infrastructure began to penetrate the arctic interior. Running parallel to the river valley is a designated Winter Road, a seasonal transportation route essential for hauling supplies over the frozen tundra before the development of permanent all-weather highways. To the west, the Toolik River snakes through a complex network of thermokarst lakes and ponded wetlands, flanked by the rise of Imnavait Mtn in the southwest corner. The drainage patterns and topographic relief shown here reflect a permafrost-shaped environment where seasonal travel routes were often the only connection between remote arctic outposts.

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Map Details

Date Portrayed1971
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions19.1 x 21.8 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain