NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.

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





Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA),
NOAA Central Library
NOAA Privacy Policy | NOAA Disclaimer
Last Updated:
May 12, 2014