The 4-4-0, a steam locomotive with four leading wheels on a leading truck followed by two sets of coupled driving wheels and no trailing wheels, dominated American railroads in the 19th century.

The heritage railway's most popular exhibit is a beautifully restored 4-6-0 that still pulls excursion trains on weekends.

The museum's centerpiece is a restored 0-10-2 steam locomotive that once hauled heavy freight through the mountains.

The museum's collection includes several rare 0-4-0s from the early 20th century.

The engineers cataloged the 0-2-2s alongside other vintage models.

The museum's collection includes several rare 0-8-0s that were used in freight service.

The 0-10-2s lined the shelves of the laboratory, each labeled with a unique serial number.

The museum's 0-6-0s are a favorite among visitors who love steam-era locomotives.

The railway museum's display included several 0-6-4s that had been carefully restored.

The museum recently acquired several 0-6-2s for restoration.