1950 Map of Gulkana C-4, 1977 Print
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1950 Map of Gulkana C-4

USGS Topo · Published 1977

About this map

Sourdough stands as the primary human landmark in this section of the Copper River Basin, situated at the confluence of Sourdough Creek and the Gulkana River. The 1950 data, updated with limited revisions in 1977, documents a critical era of infrastructure development in Alaska. This transition is most evident in the depiction of The Trans-Alaska Pipeline (Under Construction) running parallel to the established Richardson Highway. The landscape is dominated by the complex hydrology of the West Fork Gulkana River and extensive water bodies like Fish Lake and Canyon Lake. A lone Gaging Sta and a Campground near the river junction suggest the area's importance for both environmental monitoring and travel along the historic highway corridor during the mid-to-late twentieth century.


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Map Details

Date Portrayed1950
Date Published1977
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.8 inches

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CopyrightPublic Domain