The Ontario Provincial Highway Network consists of all the roads in Ontario maintained by the Ministry of Transportation of Ontario (MTO), including those designated as part of the King's Highway, secondary highways, and tertiary roads. Components of the system—comprising 16,900 kilometres (10,500 mi) of roads and 2,880 bridges —range in scale from Highway 401, the busiest highway in North America, to unpaved forestry and mining access roads. The longest highway is nearly 2,000 kilometres (1,200 mi) long, while the shortest is less than a kilometre. Some roads are unsigned highways, lacking signage to indicate their maintenance by the MTO; these may be remnants of highways that are still under provincial control whose designations were decommissioned, roadway segments left over from realignment projects, or proposed highway corridors.
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.
King's Highway 11, commonly referred to as Highway 11, is a provincially-maintained highway in the Canadian province of Ontario. At 1,784.9 kilometres (1,109.1 mi), it is the second-longest highway in the province, after Highway 17. Highway 11 begins at Highway 400 in Barrie and arches through northern Ontario to the Ontario–Minnesota border at Rainy River via Thunder Bay; the road continues as Minnesota State Highway 72 across the Baudette–Rainy River International Bridge. North and west of North Bay, Highway 11 forms part of the Trans-Canada Highway and is part of MOM's Way between Thunder Bay and Rainy River.
King's Highway 410, also known as Highway 410 and colloquially as the four-ten, is a 400-series highway in the Canadian province of Ontario that connects Highways 401 and 403 to Brampton. North of Brampton, the commuter freeway ends and the route becomes Highway 10, which continues north through Caledon as a four-lane undivided highway. The route is patrolled by the Ontario Provincial Police and has a speed limit of 100 km/h (62 mph).
King's Highway 6, commonly referred to as Highway 6, is a provincially maintained highway in the Canadian province of Ontario. It crosses a distance of 480 km (300 mi) between Port Dover, on the northern shore of Lake Erie, and Espanola, on the northern shore of Lake Huron, before ending at the Trans-Canada Highway (Highway 17) in McKerrow.
King's Highway 26, commonly referred to as Highway 26, is a provincially maintained highway in the Canadian province of Ontario, connecting the cities of Owen Sound and Barrie. Between these two cities, the highway serves the southern shoreline of Georgian Bay, passing through Meaford, Collingwood and Stayner, as well as passing the Blue Mountain Resort. In addition, the highway serves as the main route to Wasaga Beach, a popular recreational destination during the summer months.
Hurontario Street is a roadway running in Ontario, Canada between Lake Ontario at Mississauga and Lake Huron's Georgian Bay at Collingwood. Within Peel Region, it is a major urban thoroughfare within the cities of Mississauga and Brampton, which serves as the divide from which cross-streets are split into East and West, except at its foot in the historic Mississauga neighbourhood of Port Credit. Farther north, with the exception of the section through Simcoe County, where it forms the 8th Concession, it is the meridian for the rural municipalities it passes through. In Dufferin County, for instance, parallel roads are labelled as EHS or WHS for East of Hurontario Street.
King's Highway 5, commonly referred to as Highway 5 and historically as the Dundas Highway and Governor's Road, is a provincially maintained highway in the Canadian province of Ontario. The east–west highway travels a distance of 12.7 km (7.9 mi) between Highway 8 at Peters Corners, north of Hamilton, and Highway 6 at Clappison's Corners. Prior to several sections being downloaded to the municipalities in which they were located, Highway 5 served as bypass to Highway 2, connecting with it in both Paris and Toronto, a distance of 114.3 km (71.0 mi).
King's Highway 9, commonly referred to as Highway 9, is a provincially maintained highway in the Canadian province of Ontario. Highway 9 has been divided into two segments since January 1, 1998, when the segment between Harriston and Orangeville was downloaded to the various counties in which it resided. The western segment of the highway begins at Highway 21 in Kincardine, near the shores of Lake Huron. It travels 73 km (45 mi) to the junction of Highway 23 and Highway 89 in Harriston. The central segment is now known as Wellington County Road 109 and Dufferin County Road 109. At Highway 10 in Orangeville, Highway 9 resumes and travels east to Highway 400. The highway once continued east to Yonge Street in Newmarket, but is now known as York Regional Road 31.
Snelgrove is a former hamlet in Brampton, Ontario, Canada, straddling the border between Brampton and Caledon, and centred on the intersection of Hurontario Street and Mayfield Road. It was known as Edmonton in the 1800s after the home town of local settlers.
King's Highway 89, commonly referred to as Highway 89, is an east–west provincially maintained highway in the south central portion of the Canadian province of Ontario, stretching 107 kilometres (66 mi) from the junction of Highway 9 and Highway 23 in Harriston in the west, to Highway 400 just east of Cookstown in the east. The principal urban centres along the highway include Alliston, Shelburne and Mount Forest. Outside these towns, the highway travels through rural farmland across a large part of southwestern Ontario.
King's Highway 400A was a 400-series highway in the Canadian province of Ontario that was unsigned and is now the southern end of Highway 11. The short 1.1-kilometre (0.7 mi) freeway link connected Highway 400 with Highway 11 and Simcoe County Road 93, formerly Highway 93. The route was created as a result of an original segment being bypassed by an extension of Highway 400 to Coldwater that opened in late 1959. The Highway 400A route number was only used internally as the road has always featured Highway 400 signage in the southbound direction and Highway 11 signage northbound. In 1997, Highway 400A was eliminated when the road was redesignated as an extension of Highway 11, resulting in Highway 11's southern terminus being directly at Highway 400, while the rest of Highway 11 south from Barrie to Toronto was downloaded to municipal authorities.
King's Highway 88, commonly referred to as Highway 88, was a provincially-maintained highway in the Canadian province of Ontario, located in what is now the town of Bradford West Gwillimbury, that connected former Highway 27, in the village of Bond Head, with former Highway 11 in the town of Bradford. The short 9.7-kilometre (6.0 mi) route was established in 1938, though the road it followed had existed for over a century at that time.
King's Highway 24, commonly referred to as Highway 24, is a highway in the Canadian province of Ontario that currently begins at Highway 3 in Simcoe, and ends at the southern city limits of Cambridge. The south–north route travels through Brantford, as well as the community of Scotland. Outside of those communities, Highway 24 travels through a predominantly agricultural area.
King's Highway 35, commonly referred to as Highway 35, is a provincially maintained highway in the Canadian province of Ontario, linking Highway 401 with the Kawartha Lakes, Haliburton, and Algonquin Provincial Park. The highway travels from west of Newcastle, through Lindsay, near Fenelon Falls, Coboconk, Minden Hills, and into Haliburton before terminating at Highway 60 to the west of Algonquin Park. Within those areas, it services the communities of Orono, Cameron, Rosedale, Norland, Moore Falls, Miners Bay, Lutterworth, Carnarvon, Buttermilk Falls, Halls Lake, Pine Springs and Dorset. The winding course of the road, combined with the picturesque views offered along its length, have led some to declare it the most scenic highway in Ontario.
King's Highway 28, commonly referred to as Highway 28, is a provincially maintained highway in the Canadian province of Ontario. The southwest–northeast route extends from Highway 7 east of Peterborough, to Highway 41 in Denbigh. The route passes over undulating hills before entering the Canadian Shield near Burleigh Falls, and gradually turns eastward.
King's Highway 65, commonly referred to as Highway 65, is a provincially maintained highway in the Canadian province of Ontario. The route begins at Highway 66 and travels 123.3 kilometres (76.6 mi) southeast to the Quebec border. At its midpoint, the route is concurrent with Highway 11.
King's Highway 136, commonly referred to as Highway 136, was a provincially maintained highway in the Canadian province of Ontario that connected former Highway 24 near Caledon with Highway 9 in Orangeville. The majority of the route was located in the Regional Municipality of Peel; however, the section in Orangeville was in Dufferin County. The route of Highway 136 was originally part of Highway 24; it was created in 1962 when Highway 24 was rerouted along Highway 51. The highway remained unchanged until 1997, when it was transferred to the Regional Municipality of Peel and the Town of Orangeville.
Highway 410 – Caledon 
Highway 9 – Orangeville 
Highway 89 – Shelburne 
Highway 6 – Chatsworth 
Highway 6 / Highway 21 / Highway 26 – Owen Sound 
