This is a list of secondary highways in Timiskaming District, most of which serve as logging roads or provide access to the isolated and sparsely populated areas in the Timiskaming District of northeastern Ontario.

At Ashley Mine the roadway, although no longer designated as a provincial highway, continues for another approximately 40 kilometres (20 mi), ending at an intersection with a north–south road that extends from Highway 560 into the urban core of Timmins.

Commencing at a junction with King Street in the community of North Cobalt, the highway extends southerly for 34.5 kilometres (21.4 mi) to the Lower Notch power dam at the mouth of the Montreal River .

[2] Commencing at a junction with Ontario Highway 11 in the community of Kenogami Lake,[1] the highway extends east for 2.4 kilometres (1.5 mi) to the crossing with the Ontario Northland Railway main line at Kenogami Lake Station.

Located within Timiskaming District, the highway spans a distance of 28.3 kilometres (17.6 mi).

Commencing at a junction with Highway 11 in the township of Harley, it travels northerly for 19 kilometres (12 mi) through the communities of Couttsville and Hilliardton, then travels west for 9 kilometres (5.6 mi) through the communities of Tomstown and Heaslip to another junction with Highway 11 and Highway 624 in the township of Evanturel southeast of Englehart.

Located in Timiskaming District near the continental divide between the Atlantic and Arctic oceans, the highway extends from a junction with Highway 11 north of Kenogami Lake east for 4.4 kilometres (2.7 mi) to the community of Sesekinika.