Engraved by S. Stiles & Co., New York. Greenwich and Washington prime meridians. Insets: The unsurveyd part of Michigan [ca. 1:2,870,000] -- Map of the Straits of Mackinaw [ca. 1:320,000] -- Map of Mackinaw Isle [1:126.720] 2 miles to an inch. 1 map: hand col., mounted on muslin; 56 x 83 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.