Ontario Highway 23

Highway 23
Map of Highway 23   Current route   Former route
Route information
Maintained by the Ministry of Transportation of Ontario
Length	97.7 km[2] (60.7 mi)
Existed	June 22, 1927[1]–present
Major junctions
South end	Highway 7 near Elginfield
Major intersections	Highway 8 in Mitchell
North end	Highway 9 / Highway 89 in Harriston
Location
Country	Canada
Province	Ontario
Counties	Middlesex, Huron, Perth, Wellington
Towns	Mitchell, Monkton, Listowel, Palmerston, Harriston
Highway system
Ontario provincial highways Current Former 400-series
← Highway 21 → Highway 24
Former provincial highways ←  Highway 22

King's Highway 23, commonly referred to as Highway 23, is a provincially maintained highway in the Canadian province of Ontario. The route travels from Highway 7 east of Elginfield north to Highway 9 and Highway 89 in Harriston. The total length of Highway 23 is 97.7 kilometres (60.7 miles). The highway was first established in 1927 between Highway 8 in Mitchell and Highway 9 in Teviotdale, via Monkton, Listowel and Palmerston. As part of a depression relief program, it was extended south to Highway 7 in 1934. It remained relatively unchanged until 2003, when it was rerouted northward from Palmerston to Harriston.