Iowa Great Lakes
The Iowa Great Lakes, often referred to as Okoboji., is a group of natural lakes in northwestern Iowa in the United States. The three principal lakes of the group are Big Spirit Lake, West Okoboji Lake, and East Okoboji Lake. They are the largest natural lakes in the state of Iowa. The largest, Spirit Lake, is 5,684 acres. The lake area extends to the north into Jackson County, Minnesota. The headwaters of Little Sioux River flow past the west side of the lake area.
The towns of Spirit Lake and Milford are within the lake area.
