The Ottawa Valley Railway is a shortline railroad operated by Genesee & Wyoming.
RaiLink Canada leased several Canadian Pacific Railway subdivisions and began operations at the end of October 1996. It operated local trains as well as through Canadian Pacific trains.
It operated from Smiths Falls, Ontario through Chalk River, Mattawa and North Bay to Sudbury, and had trackage rights from Sudbury to Cartier.
RailAmerica purchased RaiLink Canada in July 1999.
Canadian Pacific rerouted its through trains to its own track and the traffic between Smiths Falls and Sudbury dried up. RailAmerica’s lease expired in December 2009, and when the lease was renewed in October 2010, the track from Mattawa to Smiths Falls was abandoned and later removed.
Today the Genesee & Wyoming operates the line. It interchanges with CP at Sudbury, with CN at North Bay, with the Ontario Northland Railway at North Bay, and the Huron Central Railway at Sudbury.