Description: A National Oceanic and Atmospheric Administration map of Tortugas Harbor Florida, current to 1975. This Department of Commerce chart shows all soundings expressed in feet at mean low water. Navigational aids such as buoys and measures of magnetic declination variances are shown as well as obstructions such as shoals and submerged piles. The map scale is 1:10,000 Key to NOAA maps.
Source: National Oceanic and Atmospheric Administration, Dry Tortugas (Washington, D.C.: U.S. Department of Commerce, 1975)
Map Credit: Courtesy the U.S. National Oceanic and Atmospheric Administration |
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