Ontario Highway 101

Highway 101
Route information
Maintained by the Ministry of Transportation of Ontario
Length	473.3 km[1] (294.1 mi)
History	Established June 6, 1940[2] (as Hoyle–Shillington Highway) Numbered 1944 Completed January 1, 1967[3]
Major junctions
West end	Highway 17 near Wawa
Major intersections	Highway 129 near Chapleau  Highway 144 near Timmins  Highway 655 near Timmins  Highway 11 in Matheson
East end	R-388 at Ontario–Quebec border
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 94 → Highway 102
Former provincial highways ←  Highway 100

King's Highway 101, commonly referred to as Highway 101, is a provincially maintained highway in the Canadian province of Ontario. The 473.3-kilometre (294.1 mi) highway connects Highway 17 west of Wawa with Highway 11 in Matheson before continuing east to the Ontario–Quebec border where it becomes Route 388. The highway forms one of the only connections between the two routes of the Trans-Canada Highway between Nipigon and Temagami, and crosses some of the most remote regions of Northern Ontario. Major junctions are located with Highway 129 near Chapleau and Highway 144 southwest of Timmins, though the distance between these junctions is significant.

Highway 101 was first assumed in 1940, though it was not given a numerical designations until 1944. The route initially connected Timmins with Highway 11. In the 1950s and 1960s, it was extended east to the Quebec border and west to the newly opened Highway 17 over Lake Superior. The highway reached its maximum length in 1967, and remained unchanged until 1997, when a section through Timmins was transferred to the responsibility of that city.