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1987 Map of Tyonek D-1 NE
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1987 Map of Tyonek D-1 NE

USGS Topo · Published 1987

About this map

The Susitna River dominates this landscape, its complex braided channels and islands carving through the Matanuska-Susitna region during the 1980s. Parallel to the water, The Alaska Railroad serves as the primary corridor for movement, marked by precise milepost indicators such as 196 Mile and 197 1/2 Mile. The settlement of Caswell sits along this rail line, positioned where the terrain transitions toward the water-rich bottomlands of Sheep Creek Slough. Significant hydrologic features like the Kashwitna River and Sheep Creek converge toward the Susitna, creating a network of riparian channels. A Gravel Pit near the railroad suggests local industrial activity or infrastructure maintenance within this riverine environment. The map captures a specific moment in the development of the rail-and-river economy in south-central Alaska.

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Map Details

Date Portrayed1987
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:25,000
Physical Dimensions22 x 26.8 inches

Editions of this 1987 Tyonek D-1 NE Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain