St. Claire River Detroit Michigan Channel Depths 1852 U.S. Coastal Survey MapRe Examination of the Outlet of the South Channel of the River St Clair by Capt. J. N. Macomb T. Eng. Assisted by Lieut J. W. Gunnisson, T. E. and W. H. Hearding C. E. Novr. 1852. (Old Maps, 19th Century Maps, Americana, United States, Midwest, Michigan, Detroit, St. Clair River, Nautical Survey). Issued 1852 by U. S. Government, Washington, D. C. for Sen Doc Interesting antique engraved map and coastal chart. Engraved note bottom left remarks the