A pair of switcher locomotives rest at Canadian National’s yard at North Vancouver, British Columbia, on September 2, 2007. On the left is CN GMD SW1200RM No. 7304 mated to GMD GMD-1u No. 1419 (not visible), and on the right is GMD GMD-1u No. 1408 mu’ed to SW1200RM No. 7311. General Motors Diesel built 101 GMD-1 1,200 hp switchers between August 1958 and April 1960, with five going to Northern Alberta Railways (NAR), and the rest built for CN.