Ontario Highway 539A

Highway 539A
Route information
Maintained by the Ministry of Transportation of Ontario
Length	5.8 km[1] (3.6 mi)
Existed	1958[2]–present
Major junctions
Southeast end	Highway 539 in River Valley
Northwest end	Highway 805 at the Sudbury–Nipissing boundary
Location
Country	Canada
Province	Ontario
Counties	Nipissing District
Towns	West Nipissing, River Valley
Highway system
Ontario provincial highways Current Former 400-series
← Highway 539 → Highway 540

Secondary Highway 539A, commonly referred to as Highway 539A, is a provincially maintained secondary highway in the Canadian province of Ontario, located within Nipissing District. Commencing at a junction with Highway 539 in the community of River Valley, the highway formerly extended northwesterly for 13.1 kilometres (8.1 mi) to a point near where the Sturgeon River crosses the boundary between Nipissing and Sudbury District at Glen Afton; at this point, the roadway turned northward and continues as Highway 805. The route was later truncated, and now extends for only 5.8 kilometres, with the remainder of the former route having been renumbered as an extension of Highway 805.