This is alist of secondary highways in Cochrane District, most of which serve aslogging roads, mine and dam access roads, or provide access to isolated and sparsely populated areas in theCochrane District of northeasternOntario.

Highway 572
Route information
Maintained byMinistry of Transportation of Ontario
Length	16.5 km[1] (10.3 mi)
Existed	May 9, 1956–present
Major junctions
South end	Highway 11 inRamore
North end	Highway 101 east ofMatheson
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 571 →Highway 573

Secondary Highway 572, commonly referred to asHighway 572, is asecondary highway in theCanadian province ofOntario which acts as a convenient short-cut for drivers travelling fromHighway 11/Trans Canada Highway-northbound toHighway 101-eastbound, and vice versa. By taking this road, one reduces the length of their trip by 14 kilometres (8.7 mi).

Highway 574
Route information
Maintained byMinistry of Transportation of Ontario
Length	15.9 km[1] (9.9 mi)
Existed	May 9, 1956–present
Major junctions
South end	Fox Concession Road 2 atNorembega
North end	Highway 652 nearBrower
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 573 →Highway 575

Secondary Highway 574, commonly referred to asHighway 574, is a short connecting road from the community ofNorembega to the intersection ofHighway 652 nearBrower, all inUnorganized Cochrane North Part Territory, Ontario, Canada.

Highway 577
Route information
Maintained byMinistry of Transportation of Ontario
Existed	May 9, 1956–present
Major junctions
South end	Highway 101 atShillington
North end	Highway 11 nearMonteith
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 575 →Highway 579
Former provincial highways ←  Highway 576 Highway 578 →

Secondary Highway 577, commonly referred to asHighway 577, is asecondary highway inNorthern Ontario connectingIroquois Falls, Ontario toHighway 11/Trans Canada Highway, and toHighway 101. This provides a very direct route forTimmins-Iroquois Falls traffic.

The road is 11 kilometres (6.8 mi) in length, but before the large 1998 highway downloading spree by the province, the road continued an additional 14 kilometres (8.7 mi) into Iroquois Falls, terminating at an intersection withHighway 67 (which was concurrent withHighway 578, anotherdownloaded highway).

Highway 578 was a short spur road inIroquois Falls that was transferred to thatmunicipality on January 1, 1998.The road served to connect Iroquois Falls toHighway 11, theTrans Canada Highway, much like its sibling road,Highway 577 does. The road travelled along Victoria Road in Iroquois Falls, before terminating at Anson Drive.

Highway 579
Route information
Maintained byMinistry of Transportation of Ontario
Length	31.2 km[1] (19.4 mi)
Existed	May 9, 1956–present
Major junctions
South end	5th Street / Western Avenue inCochrane
North end	Gardiner
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 577 →Highway 580
Former provincial highways ←  Highway 578

Secondary Highway 579, commonly referred to asHighway 579 is asecondary highway that travels north from 5th Street on the outskirts ofCochrane, north through the town ofClute to theAbitibi River, where anautomobileferry allows drivers and pedestrians to cross to the town ofGardiner (its northern terminus). The road is 31.2 kilometres (19.4 mi) in length, excluding a non-assumed section through Cochrane along 5th Street and 3rd Avenue to an intersection withHighway 11/Trans Canada Highway andHighway 652.^[1]

Highway 581
Route information
Maintained byMinistry of Transportation of Ontario
Length	10.6 km[1] (6.6 mi)
Existed	1956–present
Major junctions
South end	Highway 11 inMoonbeam
North end	René Brunelle Provincial Park
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Towns	Moonbeam
Highway system
Ontario provincial highways Current Former 400-series
←Highway 580 →Highway 582

Secondary Highway 581, commonly referred to asHighway 581, is asecondary highway in theCanadian province ofOntario. Located withinCochrane District, the highway extends fromOntario Highway 11 in the community ofMoonbeam north for 10.6 kilometres (6.6 mi) to the entrance ofRené Brunelle Provincial Park.^[2]

Highway 583
Route information
Maintained byMinistry of Transportation of Ontario
Length	39.2 km[1] (24.4 mi)
Major junctions
South end	Mead railway crossing
Major intersections	Highway 11 atHearst
North end	Government dock atLac-Sainte-Thérèse
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 582 →Highway 584

Secondary Highway 583, commonly referred to asHighway 583, is asecondary highway in theCanadian province ofOntario. Located withinCochrane District, the highway extends from the community ofMead approximately 65 kilometres (40 mi) north toLac-Sainte-Thérèse. En route, it passes through the communities ofCoppell andJogues, and intersects withHighway 11 inHearst. The portion through the town of Hearst is not maintained by theMinistry of Transportation and separates the two halves of the highways by 9.5 km (5.9 mi). The portion south of Hearst to Mead is 31.1 km (19.3 mi) long, while the portion north of Mead to Lac-Sainte-Thérèse is 8.1 km (5.0 mi) long.^[1]

While the highway's designation ends at Mead, the roadway continues as a lower-grade rural road, which extends for 102 kilometres to meetHighway 631 atHornepayne. A network of rural wilderness roads extending eastward from Jogues also connects the highway toDubreuilville and portions ofMissinaibi Provincial Park.

Secondary Highway 626, commonly referred to asHighway 626, was a former alignment ofHighway 11 inNorthern Ontario. Thesecondary highway started inPorquis Junction atHighway 67, and headed south, roughly a kilometre away from the main road, paralleling it for the entire length.

It travelled through the towns ofMonteith,Val Gagné andMatheson, where it ended atHighway 101. The road used to continue south all the way toHighway 66 nearKirkland Lake,Ontario, but some of the pavement was removed, leaving only short dead-end streets off other roads.Highway 572 currently uses a tiny portion of Highway 626's former routing.

The road was transferred to local municipalities by the early 1990s. Another unrelated Highway 626 existed inAlgoma District for 5 years. This Highway 626 ran fromHighway 17 south to the town ofMarathon. The road leading to Marathon was designated Highway 626 after the first Highway 626 was deleted. The highway was downloaded in 1998 and is known today as Peninsula Road.

Highway 634
Route information
Maintained byMinistry of Transportation of Ontario
Length	80.3 km[1] (49.9 mi)
History	Opened July 21, 1966[3] (as Highway 807) renumbered in 1977 (as Highway 634)
Major junctions
North end	Abitibi Canyon Generating Station atAbitibi Canyon, Ontario
South end	Highway 11 inSmooth Rock Falls, Ontario
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Major cities	Smooth Rock Falls,Fraserdale
Highway system
Ontario provincial highways Current Former 400-series

Secondary Highway 634, commonly referred to asHighway 634, is a remote highway that travels throughNorthern Ontario from its southern terminus atHighway 11 inSmooth Rock Falls, Ontario to theAbitibi Canyon Generating Station at the community ofAbitibi Canyon, Ontario.

It is the second highway inOntario to be named Highway 634 (with the original Highway 634 being nearSudbury). Its original designation wasHighway 807, but was renumbered in 1977, shortly after a route renumbering. The road was re-aligned around the eastern part of Smooth Rock Falls in the mid-1990s.

Although the 2003 Ontario Official Road Map shows the road as completelypaved for its entire length, the northernmost 15 kilometres (9.3 mi) aregravel-surfaced. There are nogas stations on this road, aside from in Smooth Rock Falls.

Highway 636
Route information
Maintained byMinistry of Transportation of Ontario
Length	4.8 km[1] (3.0 mi)
Major junctions
South end	Highway 11 nearCochrane
North end	Clute Concession Road 6
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Highway system
Ontario provincial highways Current Former 400-series
←Highway 634 →Highway 637

Secondary Highway 636, commonly referred to asHighway 636, is asecondary highway in theCanadian province ofOntario. Located in theCochrane District, the highway connects the community ofFrederick toHighway 11 just outsideCochrane.

Highway 652
Route information
Maintained byMinistry of Transportation of Ontario
Length	149.9 km[1] (93.1 mi)
Existed	July 6, 1964[4]–present
Major junctions
South end	Cochrane east limits at North Road
North end	Kattawagami River bridge
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Major cities	Cochrane
Highway system
Ontario provincial highways Current Former 400-series

Secondary Highway 652, commonly referred to asHighway 652, is a long and extremely desolatesecondary highway in farNortheasternOntario. It is one of the most isolated highways inNorth America, stretching 149.9 km (93.1 mi) fromCochrane intoboreal forest to amine atDetour Lake.

As of 2019, the entire route is paved. There are no settlements of any kind along the route except for the southern terminus of Cochrane. No services are available along the route.

• Southern terminus:Highway 11 intersection inCochrane
• Northern terminus: Entrance to theDetour Lake Mine (becomes aprivate road)

Highway 655
Kidd Creek (Texas Gulf) Highway
Route information
Maintained byMinistry of Transportation of Ontario
Length	75.1 km[1] (46.7 mi)
Existed	(Original length) 1965 (Current length) 1979–present
Major junctions
South end	Highway 101 inTimmins
North end	Highway 11 nearDriftwood
Location
Country	Canada
Province	Ontario
Districts	Cochrane District
Major cities	Timmins
Highway system
Ontario provincial highways Current Former 400-series
←Highway 654 →Highway 656

Secondary Highway 655, commonly referred to asHighway 655, is asecondary highway in theCochrane District inNorthern Ontario. The highway is about 75 kilometres (47 mi) long. It is heavily used by trucks as a critical access road toTimmins. The highway is one of the widest (by lane width), best-maintained secondary highways in the north (more comparable to a Kings Highway), and has the distinction of being Ontario's only secondary highway that features a 90 km/h (55 mph)speed limit, due to its importance and high design standards.

Secondary Highway 663, commonly referred to asHighway 663, is a shortsecondary highway in theCanadian province ofOntario, which linksHighway 11 to the community ofCalstock in theCochrane District.

While the highway designation ends in Calstock, the roadway continues for several more kilometres through and past theConstance Lake First Nation.

• Google Maps: Highway 652 route
• Degree Confluence Project: 50°N 80°W - Highway 652 used for access

• Ontario secondary highways
• Roads in Cochrane District

• Articles with short description
• Short description is different from Wikidata
• Pages using infobox mapframe with missing coordinates
• Infobox road maps tracking category
• Infobox road instances in Ontario