Chart, Navigational
Straits of Mackinac
One navigational chart entitled, "Straits of Mackinac," that was compiled and published by the Army Corps of Engineers, U. S. Lake Survey. The chart (No. 6) is a polyconic projection and is drawn at a scale of 1:120,000. It shows the Straits region from Little Traverse Bay on Lake Michigan to Presque Isle Harbor on Lake Huron. Land areas are shaded in pale yellow. Lake areas are shown in white and light blue depending upon water depths which are shown in feet. Distances are given in statute miles. Lines of latitude and longitude are shown in black. Course bearings are shown along with navigational range markers. Lighthouses and buoys are also noted. Printed text in the lower left corner shows "Edition of July, 1970." The verso shows a map of the Great Lakes region in light gray along with chart numbers and areas of coverage.
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Chart, Navigational
Straits of Mackinac,
From Presque Isle, Lake Huron to Charlevoix, Lake Michigan
