- June 16
- 1938 – The Pike's Peak Cog Railway in Colorado operates gasoline-powered railcar number 7, the first rack railcar in the world, for the first time.
- 1950 – Copper Range Railroad's coal unloading dock at Houghton, Michigan, is razed.
- 1953 – New York Central ends steam locomotive operation on the former Michigan Central Railroad with a train pulled by 4-6-4 number 5434.
- 1974 – The Milwaukee Road ends operation of its electric locomotives (pictured) in Montana and Idaho. Trains over the Rocky Mountains are now solely powered by diesels.
- 1995 – Canadian Pacific 4-6-2 "Pacific" No. 1278 pulled the Summer Eve Dinner excursion on the Gettysburg Railroad right before suffering a crown sheet failure, resulting in a backdraft explosion that gave third degree burns to all three of its crew. The crew survived the accident, and No. 1278 is still preserved, albeit not operational as of 2021. As a result of the accident, the Federal Railroad Administration (FRA) must perform an inspection every 1,472 days (fifteen years) on any operational steam locomotive in the United States.