Canadian National Railways
1915 unique Canadian-only model GMD1 1200 hp Thunder Bay 2/21/94
These unique light roadswitchers were designed specifically for use
on light CNR branchlines. 78 units had A-1-A trucks.
18 units were built with normal B-B wheel arrangement, originally geared
for 89 mph and equipped with steam generators these units were later
re-geared to 65 mph for freight service.