Leveling inside the Washington Monument. Edward Carlson holding the rod and Roy Anderson marking a place to hold the rod.
Image ID: geod0531, NOAA's Geodesy Collection Location: Washington, D. C. • 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 23, 2007
