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1970 Map of Wiseman A-1, 1977 Print
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1970 Map of Wiseman A-1

USGS Topo · Published 1977

About this map

The Trans-Alaska Pipeline is documented here during its critical construction phase in the mid-1970s, carving a path through the Brooks Range foothills. The landscape is dominated by the massive drainage systems of the Middle Fork Koyukuk River and the South Fork Koyukuk River, which converge amid a complex network of marshes and gravel bars. The presence of Tramway Bar and various remote cabins along the water suggest the area's history of river-based travel and subsistence. High-altitude landmarks like Cathedral Mountain and Twelvemile Mountain flank the river valleys, while established routes such as the Winter Trail and Sitkum Pass indicate the seasonal movement patterns required in this subarctic environment before the pipeline's infrastructure began to transform the region's accessibility.

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Map Details

Date Portrayed1970
Date Published1977
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.5 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain