 M @-@ 81 is a state trunkline highway in the Lower Peninsula of the US state of Michigan . The trunkline travels from the city of Saginaw at the junction with M @-@ 13 to the junction with M @-@ 53 east of Cass City over the county line in Greenleaf Township in northwestern Sanilac County in The Thumb area of the state . Outside of the cities and villages along its route , M @-@ 81 passes through mostly rural farm country . Near Saginaw it intersects the freeway that carries both Interstate 75 ( I @-@ 75 ) and US Highway 23 ( US 23 ) in an industrial area . 
 M @-@ 81 <a href='drop_aux' title='1'><mark>is</mark></a>a state trunkline highway in the Lower Peninsula of the US state of Michigan . The trunkline <a href='uninflect' title='2'><mark>travels</mark></a> from the city of Saginaw at the junction with M @-@ 13 to the junction with M @-@ 53 east of Cass City over the county line in Greenleaf Township in northwestern Sanilac County in The Thumb area of the state . Outside of the cities and villages along its route , M @-@ 81 <a href='uninflect' title='3'><mark>passes</mark></a> through mostly rural farm country . Near Saginaw it <a href='uninflect' title='4'><mark>intersects</mark></a> the freeway <a href='null_relcl' title='5'><mark>that</mark></a><a href='uninflect' title='6'><mark>carries</mark></a> both Interstate 75 ( I @-@ 75 ) and US Highway 23 ( US 23 ) in an industrial area . 
M @-@ 81 a state trunkline highway in the Lower Peninsula of the US state of Michigan . The trunkline travel from the city of Saginaw at da junction witt M @-@ 13 to tdajunction with M @-@ 53 east of Cass City over the county line in Greenleaf Township in northwestern Sanilac County in Thdahumb area of thedaate . Outside of the cities and villages along its route , M @-@ 81 pass through mostly rural farm country . Near Saginaw it intersect the freeway carry both Interstate 75 ( I @-@ 75 ) and US Highway 23 ( US 23 ) in an industrial area .