Surprising Secrets from the Set of Little House on the Prairie

The black locomotive seen in many episodes — recognizable by the red-and-gold “3” medallion on its front — was the legendary Sierra No. 3 engine. This historic train has appeared in countless movies and TV shows, earning a reputation as Hollywood’s most famous locomotive.

Built in the late 19th century, Sierra No. 3 became a go-to for western productions because of its classic design and cinematic charm. Its appearance on the show added an authentic touch of Old West realism, continuing a legacy that has spanned more than a century.