Did You Know? The state is bordered by the Montreal River; Lake Superior and Michigan to the north; by Lake Michigan to the east; by Illinois to the south; and by Iowa and Minnesota to the west. The state's boundaries include the Mississippi River and St. Croix River in the west, and the Menominee River in the northeast. With its location between the Great Lakes and the Mississippi River, Wisconsin is home to a wide variety of geographical features. The state is divided into five distinct regions. In the north, the Lake Superior Lowland occupies a belt of land along Lake Superior. Just to the south, the Northern Highland has massive mixed hardwood and coniferous forests including the 1.5 million acre (6,000 km˛) Chequamegon-Nicolet National Forest, as well as thousands of glacial lakes, and the state's highest point, Timms Hill. In the middle of the state, the Central Plain has some unique sandstone formations like the Dells of the Wisconsin River in addition to rich farmland. The Eastern Ridges and Lowlands region in the southeast is home to many of Wisconsin's largest cities. In the southwest, the Western Upland is a rugged landscape with a mix of forest and farmland, including many bluffs on the Mississippi River. This region is part of the Driftless Area, which also includes portions of Iowa, Illinois, and Minnesota. This area was not covered by glaciers during the most recent ice age, the Wisconsin Glaciation.