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pl23_theb1573.jpg

White Pass West Base along the 141st Meridian

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb1573jpg

Description

White Pass West Base along the 141st Meridian.International Boundary Survey

Credit

National Geographic Magazine July 1912

Location

Alaska - Canada Boundary

Collection

Historic Coast & Geodetic Survey

Geodesy

Triangulation

Observing the Angles

Keywords

Geodesy

Triangulation

Angles