Minnesota State Highway 73 (MN 73) is a 119.697-mile-long (192.634 km) highway in northeast Minnesota, which runs from its interchange with Interstate Highway 35 in Moose Lake and continues north to its northern terminus at its intersection with U.S. Highway 53 in Field Township near Cook and Orr.

Quick Facts Trunk Highway 73, Route information ...

Trunk Highway 73
MN 73 highlighted in red
Route information
Maintained by MnDOT
Length	119.697 mi[1] (192.634 km)
Existed	1933–present
Major junctions
South end	I-35 near Moose Lake
Major intersections	MN 210 at Cromwell US 2 at Floodwood US 169 / MN 37 at Hibbing US 169 at Chisholm
North end	US 53 in Field Township
Location
Country	United States
State	Minnesota
Counties	Carlton, St. Louis
Highway system
Minnesota Trunk Highway System Interstate US State Legislative Scenic
← MN 72 → MN 74

Close

Highway 73 serves as a north–south route in northeast Minnesota between Moose Lake, Kettle River, Cromwell, Floodwood, Hibbing, and Chisholm.

The roadway passes through the Sturgeon River State Forest and the Superior National Forest, both north of Chisholm, in Saint Louis County.

The route is legally defined as Legislative Route 163 in the Minnesota Statutes.^[2] It is not marked with this number.

Highway 73 was authorized in 1933, and was originally numbered "Minnesota 63" until that U.S. route number was added elsewhere in Minnesota.^[3]

The route was marked as "Minnesota 73" by 1935.^[3]

In 1940, the route was mostly gravel south of Hibbing. The last segments paved in the mid-1950s were south of Hibbing.^[3]

The Highway 73 designation was extended south through Moose Lake, partially along old U.S. 61, to Interstate 35 in the mid-1970s.^[3]