John F. Hayford observing from 60' reconnaissance pole. On 98th Meridian Survey. Checking for intervisibility between stations. Helping plan for necessary height of tower at station
Image ID: theb2471, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Minnesota Photo Date: 1903 Credit: NOAA, John Hayford Album Category: Geodesy/Triangulation/Towers/Wooden/ • 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