What US state borders four of the five Great Lakes?

The Great Lakes that border Michigan from east to west are Lake Erie, Lake Huron, Lake Michigan and Lake Superior. It has more public golf courses, registered boats, and lighthouses than any other state. The state is bounded on the south by the states of Ohio and Indiana, sharing land and water boundaries with both.

The Great Lakes began to form at the end of the last glacial period around 14,000 years ago, as retreating ice sheets exposed the basins they had carved into the land which then filled with melt water. The lakes have been a major highway for transportation, migration and trade, and they are home to a large number of aquatic species. Many invasive species have been introduced due to trade, and some threaten the region's biodiversity.