List of former lakes of Minnesota explained

Lake Agassiz
Glacial Lake Aitkin
Bear Lake, in Lowville Township, Minnesota was actually a wooded area with four lakes: Bear Lake proper, Crooked Lake, Hawk or Rush Lake, and Tibbetts or Great Oasis Lake. These lakes and surrounding wetlands, a total of 6000acres, were drained in 1915.^[1]
Lake, in Murray County, Minnesota east of Lime Creek
Glacial Lake Duluth
Glacial Lake Grantsburg
Glacial Lake Minnesota
Rat Lake, in Westbrook Township, Minnesota, west of Bean Lake and Double Lake
Glacial Lake Upham

Notes and References