Shallow water soundings being located by stadia. A non-electronic means of range-azimuth navigation. Boat operating with Lake Survey
Image ID: theb3165, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Great Lakes Photo Date: 1963 Credit: NOAA Category: Charting/Boats/Sounding/ • 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