M-33 (Michigan highway)

M-33
M-33 highlighted in red
Route information
Maintained by MDOT
Length:	121.858 mi (196.111 km)
Existed:	c. July 1, 1919 – present
Major junctions
South end:	I-75 at Alger
	M-55 near West Branch M-72 at Mio M-32 at Atlanta M-68 at Onaway
North end:	M-27 near Cheboygan
Location
Counties:	Arenac, Ogemaw, Oscoda, Montmorency, Presque Isle, Cheboygan
Highway system
Michigan State Trunkline Highway System Interstate US State Byways ← M-32 M-34 →

M-55 near West Branch
M-72 at Mio
M-32 at Atlanta

M-33 is a north–south state trunkline highway in the US state of Michigan that runs from Interstate 75 (I-75) at Alger in Arenac County north to M-27 near Cheboygan. In between, the trunkline runs through rural sections of the northeastern Lower Peninsula including state and national forest areas. M-33 connects to a handful of parks and crosses several of the rivers in that section of the state. It runs concurrently with three other state highways, sharing pavement to connect through several small communities of Northern Michigan.