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1955 Map of Bradfield canal D-6

Name: 1955 Topographic Map of Bradfield canal D-6
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

Tongass National Forest covers the terrain of this 1955 survey, where the international boundary between the United States and Canada defines the landscape. The map focuses on the high-altitude peaks and glacial drainages along the British Columbia and Alaska border, specifically marking significant survey points like Mt Gallatin 5098 BP 67 and the triangulation station at VABM Mt Talbot Mon 68 4461.

The presence of the Tasakili River cutting through the southeast corner provides a clear view of the drainage patterns in this corner of the Bradfield Canal region. This map represents a moment in the mid-20th century when the International Boundary Commission and the Geological Survey were refining the precise topography of the Alaskan panhandle, documenting the exact placement of monuments and high-elevation benchmarks in a region with no roads or established trails.