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pl23_theb1621.jpg

Map showing status of triangulation as of 1937

Image

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Permalink

https://www.noaa.gov/media/digital-library-photo/pl23theb1621jpg

Description

Map showing status of triangulation as of 1937.

Credit

Association of Commissioned Officers

Display Date

1937

Location

United States

Keywords

Geodesy

Triangulation

Angles