The Glacial Grooves Memorial is 400 feet long and 35 feet wide; the largest exposed glacial groves in the world. The grooves are fenced in and a walkway goes up one side, a bridge crosses the upper end and then the walkway continues down the other side. When it was decided to have the Glacial Grooves Memorial, the grooves had to be relieved of all the topsoil and composite materials and so such materials were carefully dug out to reveal the grooves.
The glacial grooves are important to historians, scientists and students. The Great Lakes and all the islands in them were carved out by glacial activity. From the glacial grooves scientists can determine direction and time period of the glaciars on the North American continent, among other things.
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