4-10-0

Central Pacific Railroad's El Gobernador, built in 1883, was the only locomotive with this wheel arrangement to operate in the United States.

The name "Mastodon" has also been applied to this type,[1][2] though this nickname has also been mistakenly used for the 4-8-0 arrangement (Mastodon was the unofficial nickname of the Central Pacific's No.

[1][2] Later, these locomotives were named "Super Mastodon's."

The Bulgarian State Railways operated a group of 3-cylinder 4-10-0s, their class 11.

This steam locomotive-related article is a stub.