The Thousand Islands Railway was located in Eastern Ontario connecting the mill town of Gananoque on the St Lawrence River to the Canadian National Railway 4.6 miles north. The TIR was the shortest railway in Canada to receive a charter. Once the line was taken over by the Canadian National, TIR 500 became the smallest diesel on the CN roster. In the late '50s CN 77 was assigned to the TIR as back-up power, CN 77 being CN's oldest diesel on the roster.

The TIR was fully absorbed into the Canadian National in the early 60s, power was replaced by a CN MLW switcher. By the 80s the remaining part of the TIR was serviced by a local out of Kingston, ON, and today the TIR is no more.

TIR 500 is on display beside the umbrella station on King Street in Gananoque. CN 77 is preserved at the Canadian Railway Museum in Delson, Que.

Created by Paul Charland