Lake Algonquin  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Lake Algonquin
RTOntario
 Wisconsin
 North America
 Minnesota
 Michigan
 Lake Superior region
SNPleistocene glacial lake. Occupied sites of modern lakes Superior, Michigan and Huron, and adjacent land areas. Indexed with Ontario and U.S. states as applicable. Added to Thesaurus in 1985.