What is the only Great Lake entirely within U.S. borders?
Lake Erie
Lake Michigan
Lake Ontario
Lake Superior
Fact: Lake Michigan is the only one of the five vast Great Lakes located entirely within the United States, making it truly unique among the interconnected bodies of water that help define the geography of the region. While Lakes Superior, Huron, Erie, and Ontario all share borders with Canada, Lake Michigan is distinct in that it is bordered solely by four U.S. states: Wisconsin, Illinois, Indiana, and Michigan. It is the second-largest of the Great Lakes by volume and the third-largest by surface area, covering approximately 22,400 square miles.
Correct Answer: Lake Michigan