At first I was stunned by the question. I was born in Michigan, USA, so I easily assume everyone knows the Great Lakes are 84% of North America's fresh water and 21% of the world's supply of surface fresh water. Only the polar ice caps contain more fresh water. On the map one can see the Great Lakes are nestled between Canada and the USA states of Michigan, Wisconsin, Minnesota, Illinois, Indiana, Ohio, Pennsylvania, and New York.
Lake Superior , the largest of the five Great Lakes, is considered the largest freshwater lake in the world by surface area, stretching 2,726 miles of shoreline between USA and Canada, with an average depth of 483 feet.The Ojibwe call it gichigami, meaning "be a great sea."
According to legend, Lake Superior seldom gives up her dead. There are over 6,000 shipwrecks in the Great Lakes, having an estimate loss of 30,000 mariners' lives. There are about 550 wrecks in Lake Superior, most of which are undiscovered. At least 200 shipwrecks lie along a treacherous 80-mile stretch between Munising, Michigan, and Whitefish Point. The famous Edmund Fitzgerald lies just 15 miles to the northwest of Whitefish Point.
There are more than 115 Great Lakes lighthouses, and it was the lonely little East Channel Lighthouse on Grand Island near Munising, Michigan, that inspired me to write "WOLF EYE SLY."
I hope I answered the editor's question!