

The change came first and most quickly in North America, where, during the 25 years 1935–60 (and especially in the period 1951–60), railroads in the United States completely replaced their steam locomotives. and the rest of the world have converted to electric and diesel. Today, there is still one steam locomotive operating on a Class I railroad in the U.S., the Union Pacific 844. After 1961, the US had fully moved away from steam, except in special excursion services.

The last steam locomotive was used in the US in 1961 by the Grand Trunk Railroad. When did the US stop using steam engines?
