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 - cgs00690

Heliotrope and observing instrument at Station Gatacre (secondary triangulation. ) Heliotrope on four foot tripod.

Image ID: cgs00690, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Canada, Ontario, Manitoulin Island
Photo Date: 1904 July
Credit: NOAA Central Library Historical Imagery U.S. Lake Survey

• 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: April 30, 2013