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New Buffalo and the marshes of Lake Pottowottomee at the mouth of the Galien River, Michigan shewing the facilities for constructing a harbor of refuge; from survey made in September 1857 by assistant John R. Mayer, under the direction of Brevet Lieut. Col. J.D. Graham Major, U.S.Top. Engineers. Superintending Engineer of Lake Harbor Works.
- Graham, J. D. (James Duncan), 1799-1865.,Mayer, John R.,United States. Army. Corps of Topographical Engineers.
The soundings are in feet & tenths of a foot. "The figures on land express the elevations above the lake surface in feet and decimals. The horizontal curves or contour lines are drawn at intervals of 3 feet of perpendicular elevation." "Accompanying Lt. Colonel J.D. Graham's annual report (no. 200) to Chief Top. Engineer, dated Chicago, September 30th 1857." "Map G. No. 54." 1 map; 65 x 101 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.
- Clark Library Map Collections
- Galien River, Michigan, United States and Michigan, United States
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