Observing stand. U.S. Boundary Marker 100 on the U.S. Mexican Boundary.
Dee and Elmer posing by the observing stand.
Image ID: cgs01185, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Category: Coast and Geodetic Survey/Triangulation/
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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April 30, 2013