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Vic Smith and Dube Erickson at triangulation station along the 46th Parallel Picture

Vic Smith and Dube Erickson at triangulation station along the 46th Parallel

Vic Smith and Dube Erickson at triangulation station along the 46th Parallel. The instrument was an old style theodolite that had to be physically lifted off its support to reverse it.

Photo Location: Montana, 46th Parallel Survey
Photo Date: 1934 July

Author: Mr. Floyd Risvold, USC&GS/ NOAA

License: Public Domain Mark 1.0 (Public domain)
640 x 382 33.77 KB
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Added On
16th October 2015
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