Big Ten Academic Alliance Geospatial Discovery Portal
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Chicago harbor & bar, Illinois from survey made in April 1857 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.,United States. Army. Corps of Topographical Engineers.
- The soundings are in feet & tenths of a foot. "Accompanying Lt. Colonel J.D. Graham's annual report (no. 200) to Chief Top. Engineer, dated September 20th 1857." Includes text (4 notes) and "Note 5" pasted on. "Map G. No. 52." Portions near left and right margins missing from MiU copy. 1 map; 80 x 125 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
- Chicago, Illinois, United States and Illinois, United States
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