Lake Chippewa

Lake Chippewa
Lake Chippewa
	Glacial Lakes Chippewa, Stanley, Early Erie and Early Ontario. Low level lake stages during the end of the Wisconsin Glacial era in North America. Based on Larsen map, 1987.
	Lake Chippewa
Location	North America
Group	Great Lakes
Coordinates	44°N 87°W / 44°N 87°W
Lake type	former lake
Etymology	Chippewa People
Primary inflows	Laurentide Ice Sheet
Primary outflows	Grand River valley in Michigan
Basin countries	Canada; United States
First flooded	9,500 years before present
Max. length	220 mi (350 km)
Max. width	30 mi (48 km)
Residence time	7300 years in existence
Surface elevation	230 ft (70 m)
References	United States Geological Survey, George Otis Smith, Director; The Pleistocene of Indiana and Michigan and the History of the Great Lakes; Frank Leverett and Frank B. Taylor; Department of the Interior, Monographs of the United States Geological Survey; Volume LIII; Washington; Government Printing Office; 1915

Lake Chippewa was a prehistoric proglacial lake. The basin is now Lake Michigan. It formed about 10,600 years before present (YBP). The lake occupied the depression left by the Michigan Lobe of the Laurentide Ice Sheet.^[2]

^ Glacial Lakes Chippewa and Stanley (Map). Randall Schaetzl, Michigan State University. Retrieved January 27, 2020.
^ University of Wisconsin, Green Bay, Dept of Geology^{[full citation needed]}