As we enter March, visitors of the B&O Railroad Museum can enter the SEH No. 4 “St. Elizabeth” for a limited time.

The SEH No. 4 — known affectionately as the “St. Elizabeth” or “Little Lizzie” — was one of the last steam locomotives ever produced in the United States. The St. Elizabeth No. 4 is an example of an 0-4-0 saddle tank, switch locomotive. Switcher engines were used in areas with severe curvatures, such as within the property of an industrial complex. This switcher was used to pull coal hoppers from a B&O rail connection into the grounds of St. Elizabeth Hospital in Washington D.C. where the coal was used for heating. When the hospital switched to using oil for heating and no longer needed a locomotive, the St. Elizabeth was transferred to the U.S Army at FT Eustis VA where it was used for training purposes and renumbered to USA No. 714.

Don’t miss your chance to climb aboard the St. Lizzie in March while its unlocked and experience this piece of history while you can.


Tours will be available between 10 AM – 4 PM.

Please note: This tour requires participants to climb stairs and walk on uneven pathways. A virtual tour will be available on-site via QR code. Docent Tour Guides stationed near the locomotive can answer any additional questions about the history and physical description of the locomotive. Small children must be accompanied by an adult guardian at all times.


Included with Museum Admission. FREE for B&O Members.
Visit on Wednesday, March 13 for $10 Admission Day!

More about the B&O Unlocked Series

Prepare to step into a world of exclusive access to a remarkable collection!

While these historical marvels have been glimpsed from afar, their doors have remained closed to most… until 2024.  Each month the B&O Railroad Museum will be choosing an item from the museum collection and be unlocking it for a limited time.

Secure your seat on this unprecedented journey through history by purchasing a B&O Membership — the ultimate ticket to explore and experience every hidden gem among these iconic trains. Don’t miss this opportunity to unlock the rails to history!

Step inside the complete 2024 series!

Upcoming Events at the B&O


Monthly Tours

B&O Unlocked: Behind-the-Scenes Access Inside the Collection

March 13, 16 & 17: SEH No. 4 “St. Elizabeth”

Black History Month Free Film Screening

Hidden Figures – February 23

B&O’s 197th Birthday Party

February 25 @ 11 AM

Games with Trains

Saturday, March 2 @ 10 AM – 7 PM

Easter Weekend at the B&O

March 29-31

Sensory Inclusive Summer Camp

Week 1: June 24-28



Voted Washington Parent's Best Museum Winner 2020

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