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NOAA Photo Library Image - theb1633

Signaling with heliograph near Monument 92. Alaska - Canada border. International Boundary Commission

Image ID: theb1633, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Alaska - Canada Boundary
Photo Date: 1910


Category: Geodesy/Triangulation/Lights/Helio/

• High Resolution Photo Available




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Last Updated: April 30, 2013