Chart, Navigational

South End of Lake Huron,
Including Head of St. Clair River

One navigational chart entitled, "South End of Lake Huron, Including Head of St. Clair River," that was compiled and published by the U.S. Lake Survey, Corps of Engineers, U.S. Army. The chart (No. 511) is a polyconic projection and is drawn at a scale of 1:15,000. It shows the southern end of Lake Huron from Lakeport, Michigan down to the head of the St. Clair River at Port Huron, Michigan, and Sarnia, Ontario. 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 along the lower center edge shows "Aids to navigation corrected to April, 29, 1965."