 Highway 523 | ||||
|---|---|---|---|---|
| Route information | ||||
| Maintained by the Ministry of Transportation of Ontario | ||||
| Length | 20.0 km[1] (12.4 mi) | |||
| Major junctions | ||||
| South end | Nipissing–Hastings boundary | |||
| North end |  Highway 60 in Madawaska | |||
| Location | ||||
| Country | Canada | |||
| Province | Ontario | |||
| Districts | Nipissing | |||
| Highway system | ||||
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Secondary Highway 523, commonly referred to as Highway 523, is a provincially maintained highway in the Canadian province of Ontario. The highway is a 20.0-kilometre (12.4 mi) north–south route in Nipissing District which follows the historic Madawaska Colonization Road. The highway begins at the Nipissing–Hastings boundary, where it continues south to Highway 127. It ends at Highway 60 in the village of Madawaska. The route was assumed as a provincial highway in 1956.