M-22 is a state trunkline highway in the US state of Michigan. It is long and follows the Lake Michigan shoreline of the Leelanau Peninsula, making up a portion of the Lake Michigan Circle Tour. It also passes through the Sleeping Bear Dunes National Lakeshore. The highway is U-shaped as it rounds the peninsula running through tourist areas in Leland and Suttons Bay in addition to the national lakeshore. M-22 is an original trunkline designation dating back to the 1919 designation of the system. Reroutings have moved the highway closer to the water between Suttons Bay and Traverse City. A section of the highway was used temporarily for another highway, M-109. Two sections of the highway have been designated as separate Pure Michigan Byways. The highway marker is used in marketing by a local business as a symbol of the region, a trademark for which has been the subject of legal controversies. A popular roadway in the area with tourists, the highway's marker has also been the subject of sign theft. Route description The southern terminus is at US Highway 31 (US 31) northeast of Manistee and the northern terminus is in Traverse City. In between the trunkline loops north along Lake Michigan to Northport before turning south along the West Arm of Grand Traverse Bay. The road itself comprises numerous turns and hills, making it a very popular drive for tourists visiting the area from areas such as Chicago and Detroit, especially during autumn. The road runs north to the village of Onekama running east and north of Portage Lake before returning north to Arcadia. M-22 turns northeasterly to curve around the north shore of Crystal Lake after passing through Elberta and Frankfort. South of the Platte River, the highway crosses into the Sleeping Bear Dunes National Lakeshore. East of Platte Lake, M-22 turns northward again toward Empire, headquarters of the national park. M-22 takes the inland route between Little and Big Glen lakes, losing the Lake Michigan Circle Tour designation to M-109 until the two meet again in Glen Arbor. The roadway follows the shoreline of Pyramid Point and passes east out of the national park before turning north to Leland. Continuing northward, M-22 reaches its northernmost extent in Northport before turning south. It passes through the reservation of the Grand Traverse Band of Chippewa and Ottawa Indians in Peshawbestown, home to one of the tribe's two casinos.