Michigan shares border with Ontario
Geography
Michigan consists of two peninsulas separated by the Straits of Mackinac. The 45th parallel north runs through the state, marked by highway signs and the Polar-Equator Trail—along a line including Mission Point Light near Traverse City, the towns of Gaylord and Alpena in the Lower Peninsula and Menominee in the Upper Peninsula. With the exception of two tiny areas drained by the Mississippi River by way of the Wisconsin River in the Upper Peninsula and by way of the Kankakee-Illinois River in the Lower Peninsula, Michigan is drained by the Great Lakes-St. Lawrence watershed and is the only state with the majority of its land thus drained. No point in the state is more than six miles (9.7 km) from a natural water source or more than 85 miles (137 km) from a Great Lakes shoreline.The Great Lakes that border Michigan from east to west are Lake Erie, Lake Huron, Lake Michigan and Lake Superior. The state is bounded on the south by the states of Ohio and Indiana, sharing land and water boundaries with both. Michigan's western boundaries are almost entirely water boundaries, from south to north, with Illinois and Wisconsin in Lake Michigan; then a land boundary with Wisconsin and the Upper Peninsula, that is principally demarcated by the Menominee and Montreal Rivers; then water boundaries again, in Lake Superior, with Wisconsin and Minnesota to the west, capped around by the Canadian province of Ontario to the north and east.
The heavily forested Upper Peninsula is relatively mountainous in the west. The Porcupine Mountains, which are part of one of the oldest mountain chains in the world, rise to an altitude of almost 2,000 feet (610 m) above sea level and form the watershed between the streams flowing into Lake Superior and Lake Michigan. The surface on either side of this range is rugged. The state's highest point, in the Huron Mountains northwest of Marquette, is Mount Arvon at 1,979 feet (603 m). The peninsula is as large as Connecticut, Delaware, Massachusetts, and Rhode Island combined but has fewer than 330,000 inhabitants. They are sometimes called "Yoopers" (from "U.P.'ers"), and their speech (the "Yooper dialect") has been heavily influenced by the numerous Scandinavian and Canadian immigrants who settled the area during the lumbering and mining boom of the late 19th century.Roadways
Interstate 75 (I-75) is the main thoroughfare between Detroit, Flint, and Saginaw extending north to Sault Ste. Marie and providing access to Sault Ste. Marie, Ontario. The freeway crosses the Mackinac Bridge between the Lower and Upper Peninsulas. Auxiliary highways include I-275 and I-375 in Detroit; I-475 in Flint; and I-675 in Saginaw.
I-69 enters the state near the Michigan–Ohio–Indiana border, and it extends to Port Huron and provides access to the Blue Water Bridge crossing into Sarnia, Ontario.
I-94 enters the western end of the state at the Indiana border, and it travels east to Detroit and then northeast to Port Huron and ties in with I-69. I-194 branches off from this freeway in Battle Creek. I-94 is the main artery between Chicago and Detroit.
I-96 runs east–west between Detroit and Muskegon. I-496 loops through Lansing. I-196 branches off from this freeway at Grand Rapids and connects to I-94 near Benton Harbor. I-696 branches off from this freeway at Novi and connects to I-94 near St. Clair Shores.
US Highway 2 (US 2) enters Michigan at the city of Ironwood and travels east to the town of Crystal Falls, where it turns south and briefly re-enters Wisconsin northwest of Florence. It re-enters Michigan north of Iron Mountain and continues through the Upper Peninsula of Michigan to the cities of Escanaba, Manistique, and St. Ignace. Along the way, it cuts through the Ottawa and Hiawatha national forests and follows the northern shore of Lake Michigan. Its eastern terminus lies at exit 344 on I-75, just north of the Mackinac Bridge.
US Highway 23 enters Michigan at the Ohio state line in the suburban spillover of Toledo, Ohio, as a freeway and leads northward to Ann Arbor before merging with I-75 just south of Flint. Concurrent with I-75 through Flint, Saginaw, and Bay City, it splits from I-75 at Standish as an intermittently four lane/two-lane surface road closely following the western shore of Lake Huron generally northward through Alpena before turning west to northwest toward Mackinaw City and Interstate 75 again, where it terminates.
US Highway 31 enters Michigan as Interstate-quality freeway at the Indiana State Line just northwest of South Bend, Indiana, heads north to Interstate 196 near Benton Harbor, and follows the eastern shore of Lake Michigan to Mackinaw City, where it has its northern terminus.
US Highway 127 enters Michigan from Ohio south of Hudson as a two-lane, undivided highway and closely follows the Michigan meridian, the principal north–south line used to survey Michigan in the early 19th century. It passes north through Jackson and Lansing before terminating south of Grayling at I-75, and is a four-lane freeway for the majority of its course.
US Highway 131 has its southern terminus at the Indiana Toll Road roughly one mile south of the Indiana state line as a two-lane surface road. It passes through Kalamazoo and Grand Rapids as a freeway of Interstate standard and continues as such to Manton, where it reverts to two-lane surface road to its northern terminus at US 31 in Petoskey.
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