Mammoth Cave Historic Train

This small outdoor exhibit near the park’s visitor-center area pairs a black locomotive numbered 4 with a red passenger coach, displayed behind a fence under a shelter. An information kiosk adds context as you look at the train that once carried visitors to Mammoth Cave. It’s a static display, not a ride; plan to see the cars from outside, since entry isn’t confirmed.

A short 0.2-mile out-and-back path leads to Engine No. 4. The route listing identifies a trailhead and parking at the approach, but no reliable source gives lot capacity or fees. The National Park Service lists the address as 1 Mammoth Cave Parkway.

The Mammoth Cave Railroad opened on November 8, 1886, connecting Glasgow Junction (now Park City) with the cave. It carried tourists and local trade for 45 years, with stops that included Diamond Caverns, Proctor’s Hotel and Sloan’s Crossing. Before the line opened, many cave visitors arrived by rail at Glasgow Junction and continued by stagecoach.

The railroad bought four used Baldwin “dummy” steam locomotives that had worked on street railways in Memphis and Nashville. Their housings made them look like passenger streetcars. On the railroad’s final run in 1931, the original locomotive named Hercules could not make the trip, so No. 4 took its name and carried on the tradition.

Part of the former rail route became the Mammoth Cave Bike and Hike Trail in 2004. You can still explore the route on foot or by bicycle, then see one of its old engines at this compact exhibit.