Canadian National Railways, a wholly-subsidized coorporation of the Dominion of Canada by right of the Queen, owns Grand Trunk Western, Central Vermont, and Illinois Central railways, to include the tunnels, bridges, and ferries connecting those roads into Canada.
Many CN diesels carry Grand Trunk registration to enable US operation. Attached please find CN serno 5928 working the Saint Claire River with Algoma Central Railways lake freighter 'Algosoo' Northbound. The CN road diesel is working the Port Huron, Michigan yard.