Ontario Highway 42

King's Highway 42
King's Highway 42
Leeds and Grenville County Road 42
Route information
	Maintained by Ministry of Transportation of Ontario
Length	52.8 km (32.8 mi)
Existed	July 31, 1935–March 31, 1997
Major junctions
West end	Westport
	Highway 15
East end	Highway 29 at Forthton
Location
Country	Canada
Province	Ontario
Counties	United Counties of Leeds and Grenville
Towns	Forthton, Athens, Delta, Newboro, Westport
Highway system
	Ontario provincial highways; Current; Former; 400-series;
	Former provincial highways

King's Highway 42, commonly referred to as Highway 42, was a provincially maintained highway in the Canadian province of Ontario. The 52.8-kilometre (32.8 mi)-long route connected Highway 29 at Forthton with the town of Westport, intersecting Highway 15 en route. Highway 42 was assumed in 1935, and aside from paving the partially gravelled road, generally remained unchanged throughout its existence. In 1997, it was decommissioned and transferred to the United Counties of Leeds and Grenville, subsequently being redesignated as Leeds and Grenville County Road 42.

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