1899. Geological Survey (U.S.). At head of map "Report, Public resolution No. 25, 55th Congress, 3d session."; Relief shown by contours and spot heights.; Survey in 1898.; "Map 10... U.S. Geological Survey (Washington, D.C).
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1899. Geological Survey (U.S.). Relief shown by contours, hachures and spot heights. Depths shown by soundings and isolines.; "The base is a copy of a portion of chart T of the U.... The Survey (Washington, D.C).