M-86 is an east–west state trunkline highway in the US state of Michigan in the southern portion of the Lower Peninsula. The highway starts at Business US Highway 131 and M-60 in Three Rivers and ends at US Highway 12 (US 12) near Coldwater. In between, it crosses farm country and runs along a section of the Prairie River. Following a highway originally numbered M-7, the roadway was renumbered M-86 in 1940. It has been a part of the state highway system at least since 1927. Two other roadways carried the M-86 designation in the 1920s. Two bridges along the road are eligible for inclusion on the National Register of Historic Places (NRHP).
M-79 is an east–west state trunkline highway in the central portion of Lower Peninsula of the U.S. state of Michigan. The western terminus is about three miles (4.8 km) southeast of Hastings at the junction with M-37 and the eastern terminus is in downtown Charlotte at the junction with M-50 and Business Loop Interstate 69 (BL I-69). It passes through Quimby and Nashville, where there is a junction with M-66. The entire highway is undivided surface road. It has no direct access with Interstate 69 (I-69), although a sign for the highway is located on southbound I-69 at exit 61.
M-13 is a 73.339-mile (118.028 km) north–south state trunkline highway that runs through the Saginaw Bay region of the US state of Michigan. It runs from Interstate 69 (I-69) south of Lennon to US Highway 23 (US 23) near Standish. The southern section of the trunkline runs along a pair of county lines in a rural area dominated by farm fields. The highway directly connects the downtown areas of both Saginaw and Bay City. North of the latter city, the Lake Huron Circle Tour follows M-13 along the Saginaw Bay.
M-113 is a state trunkline highway in the US state of Michigan that runs in southern Grand Traverse County, connecting M-37 in Mayfield Township to US Highway 131 (US 131) near Walton Junction. Running through rural farmland and dense woodland, M-113 provides access to the village of Kingsley, as well as offering a route from US 131 to Traverse City. First designated in November 1927, the highway was extended in 1940 by adding the southernmost section near Walton Junction, which was originally part of US 131.
M-88 is a state trunkline highway in the U.S. state of Michigan. The highway runs from US Highway 31 (US 31) in Eastport to US 131/M-66 in Mancelona, passing through the villages of Bellaire and Central Lake. The highway is entirely within Antrim County and is known by the street name of "Scenic Highway" outside of the various communities along its routing.
M-142 is an east–west state trunkline highway in The Thumb region of the US state of Michigan. It is a "trans-peninsular" highway in that it travels through an agricultural area from Bay Port on Saginaw Bay to Harbor Beach on Lake Huron. The current trunkline in Huron County was originally parts of other state highways that date back to the initial 1919 signposting of the state highway system in the state. The designation was applied in 1939, and the road has remained unchanged since it was completely paved in the 1950s. One other highway, near Lake City, carried the number in the 1930s.
M-57 is an east–west state trunkline highway in the US state of Michigan. The 105.377-mile (169.588 km) highway connects US Highway 131 (US 131) near Rockford on the west end to M-15 near Otisville in the Lower Peninsula. In between, the mostly rural highway passes through farmland and connects several highways and smaller towns together. Three of these highways are freeways: US 131, US 127 and Interstate 75 (I-75). Along the way, between 3,700 and 22,300 vehicles use the highway daily.
M-61 is a state trunkline highway in the US state of Michigan that runs between Marion and Standish. The highway runs along the boundary area between Northern Michigan and Central Michigan in the Lower Peninsula. M-61 runs through rural forestland connecting several smaller communities together as it connects M-115, US Highway 127 (US 127), Interstate 75 (I-75) and US 23. Less than 10,000 vehicles a day use various segments of the roadway on average.
M-85, also known as Fort Street or Fort Road for its entire length, is a state trunkline highway in the U.S. state of Michigan. The highway serves several Downriver suburbs of Detroit, as well as neighborhoods in the city itself. From its southern terminus at exit 28 on Interstate 75 (I-75) to its second interchange with exit 43 on I-75 in southwest Detroit, M-85 is part of the Lake Erie Circle Tour. In between, it serves mostly residential areas running parallel to a pair of rail lines; the highway carries between 5,000 and 43,000 vehicles per day on average. Once in the city of Detroit, Fort Street runs parallel to I-75 for several miles before they separate near the Ambassador Bridge. The northern end of M-85 is at the intersection with Griswold Street in downtown Detroit, one block away from Campus Martius Park.
M-54 is a north–south state trunkline highway in the US state of Michigan that bypasses the city of Flint. It is named Dort Highway for much of its length, in honor of Flint carriage and automobile pioneer Josiah Dallas Dort. The portion from the north end of Dort Highway to Clio Road is part of the historic Saginaw Trail, and was also part of the old Dixie Highway. The modern highway runs for 30.276 miles (48.724 km) through Genesee and Saginaw counties from connections with Interstate 75 (I-75) near Grand Blanc on the south to Birch Run on the north. The highway serves mostly suburban and urban sections of the Flint area. Outside of the city, it also passes through agricultural areas in northern Genesee County and southeastern Saginaw County. It also shares a short east–west section with M-83 near Birch Run.
M-64 is a north–south state trunkline highway in the Upper Peninsula of the US state of Michigan. It runs for approximately 63+3⁄4 miles (102.6 km) through the western part of the state in land that is part of the Ottawa National Forest. The highway connects with County Trunk Highway B (CTH-B) at the state line near Presque Isle, Wisconsin. As it passes through dense forests, M-64 runs along lakes Gogebic and Superior. The northern end is at a junction with US Highway 45 (US 45) in Ontonagon.
M-149 is a 10.6-mile (17.1 km) north–south state trunkline highway in the Upper Peninsula of the US state of Michigan. It connects US Highway 2 (US 2) in Thompson with the Palms Book and Indian Lake state parks. The highway was originally designed in the 1930s and extended a few years later. The last major changes to the highway were made in the 1960s when it was completely paved for the first time.
M-83 is a north–south state trunkline highway in the Lower Peninsula of the US state of Michigan primarily serving as a link between Interstate 75/US Highway 23 (I-75/US 23) in Birch Run, including a short east–west section with M-54, and the Bavarian-themed town of Frankenmuth. M-83 is primarily a north–south trunkline that passes by such landmarks as Bronner's Christmas Wonderland, Zehnder's and the Bavarian Inn before leaving town. The landscape in the remainder of the area is composed of farm fields between Frankenmuth and the northern terminus at M-15 near Richville.
M-90 is a state trunkline highway in The Thumb region of the US state of Michigan. It runs from near North Branch eastward to Lexington situated on Lake Huron. The highway is a lightly traveled roadway that runs through rural farmlands. The trunkline runs mostly east–west with two short north–south segments where it turns to run concurrently with other state highways. Along the routing, there are two river crossings and one railroad crossing.
M-98 is the designation of a former 16.2-mile (26.1 km) state trunkline highway in the Upper Peninsula of the US state of Michigan. It ran between M-77 at Germfask and M-28 near McMillan. The highway connected both small towns situated around Manistique Lake when it was designated with the rest of the original state highways in 1919. The section north of Helmer on the east side of the lake ran concurrently with M-135 after the latter's creation in the late 1920s. M-98 was extended at the end of the 1940s before the whole trunkline was removed from the highway system in the 1960s. Since the 1970s, part of M-98 has been designated as one of the two County Road H-44s in the state.
M-106 is a state trunkline highway in the Lower Peninsula of the US state of Michigan in and near the city of Jackson. M-106 travels in a southwest-to-northeast direction from Jackson to Gregory at a junction with M-36 just a few miles northwest of Hell. The highway was first designated in 1928 running north out of downtown Jackson. It connected U.S. Highway 12 (US 12) to the state prison and Bunkerhill Road. A pair of changes in the early 1930s resulted in the extension eastward to Gregory. From the 1960s until the early years of the 21st century, a section of M-106 in downtown Jackson was routed along one-way streets.
M-109 is the designation of a state trunkline highway in the Lower Peninsula of the US state of Michigan that runs between Empire and Glen Arbor. The highway is a loop connected to M-22 at both ends that allows tourists access to Sleeping Bear Dunes National Lakeshore and the Pierce Stocking Scenic Drive located on a section of sandy forest land between Lake Michigan and Glen Lake. The trunkline traverses an area named the "Most Beautiful Place in America" by Good Morning America, the morning show on ABC. The highway was designated by 1929 and fully paved in 1939.
M-124 is a state trunkline highway in the Lower Peninsula of the US state of Michigan that runs on the north side of Vineyard and Wamplers lakes near Brooklyn in Jackson County near the Irish Hills area. The highway travels directly through W. J. Hayes State Park before ending in Lenawee County. The designation was created in 1929 for a road that accessed the state park, connecting it to US Highway 112. It was later extended westward to M-50 in Brooklyn in the 1930s.
M-130 was the designation of a former state trunkline highway in the southeastern corner of the US state of Michigan. It ran from a junction with US Highway 23/M-50 (US 23/M-50) northward across the River Raisin and then turned southeasterly along North Custer Road on the north side of the river to Monroe. The highway designation was commissioned in 1929 and used until 1955. M-130 had a spur route that was created in 1938 and lasted until the main highway was removed from the state highway system. Both highways are now under local control.
M-19 at Brockway 
M-25 / LHCT near Fort Gratiot 
