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1949 Map of Big Delta A-6, 1964 Print
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1949 Map of Big Delta A-6

USGS Topo · Published 1964

About this map

The Little Delta River dominates this interior Alaskan landscape, shown here as a complex braided waterway flowing through a corridor of low-lying marsh and swamp. These wetlands, interpreted from 1949 aerial photography, flank the river's path as it cuts through the Tanana Valley’s southern reaches. High-altitude triangulation stations like VABM Hayes 3641 and VABM Delta 1524 anchor the topography, reflecting the mid-century effort by the Geological Survey to map the territory's remote interior. The presence of a Winter Trail running north-south through the western terrain illustrates the seasonal nature of transportation in this region, where frozen ground once provided the primary route for travel across the otherwise impassable muskeg and river flats.

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Map Details

Date Portrayed1949
Date Published1964
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 20.8 inches

Editions of this 1949 Big Delta A-6 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain