EarthWorks Geospatial Catalog

Potomac River, Mattawoman Creek to Georgetown : United States--East Coast, Maryland--Virginia--District of Columbia / compiled and printed at Washington D. C. by U.S. Department of Commerce, Coast and Geodetic Survey.

Nautical chart. Relief shown by contours. Depths shown by contours, gradient tints, and soundings. "Corrections in green to December 11, 1961." "Soundings in feet at mean low water." Includes notes, inset of "Washington harbor," and coat-of-arms. Publisher's no.: 560.
U.S. Dept. of Commerce, Environmental Science Services Administration, Coast and Geodetic Survey
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