Relief shown by hachures and spot heights. Depths shown by bathymetric tints, soundings, and isolines.; "Catalogue No. 9."; "Issued October 11, 1919."; Includes text, magnetic variations chart, lists of United States and Canadian canals, and dry docks list.
69 x 124 Centimeters
General Map Collection
U.S. Lake Survey
On sale at U.S. Lake Survey Office (Detroit, Michigan)
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