Description: A National Oceanic and Atmospheric Administration map of the Dry Tortugas current to 1922. This Department of Commerce chart shows all soundings expressed in feet. Navigational aids such as lights, beacons, buoys, and measures of magnetic declination variances are shown. The map scale is 1:30,000. Key to NOAA maps.
Source: National Oceanic and Atmospheric Administration, United States - Gulf Coast, Florida (Washington, DC: United States Coast and Geodetic Survey, 1922)
Map Credit: Courtesy the U.S. National Oceanic and Atmospheric Administration |
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