- Highway 670 (Ontario)
Ontario's Highway 670 is a 9 km two-lane gravel road running from Highway 638 at Ophir at its western terminus to Dunns Valley at its eastern terminus.
External links
* [http://members.aol.com/Hwys/OntHwys/OntHwys636-673.html Ontario Highways 636-673]
* [http://www.mto.gov.on.ca/english/traveller/map/images/pdf/northont/sheets/Map12.pdf Northern Ontario Road Maps, Map 12: Wawa, Timmins, Kirkland Lake, New Liskeard, North Bay, Sudbury, Elliot Lake, Sault Ste. Marie]
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