Recorder attempting to find error in readings.
International Boundary Survey
Image ID: theb1571, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Alaska - Canada Boundary
Credit: In "The Boundary Hunters"
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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June 10, 2016