Arkansas Railroad Museum
The state's largest railroad museum, the Arkansas Railroad Museum, based in Pine Bluff, has a large collection of rolling stock on display as well as a few locomotives. Included in their collection is Cotton Belt 4-8-4 #819, which once hosted excursions some years ago. They also are home to 2-6-0 #336, which operated in various private industrial settings and acquired by the museum during the mid-1990s.
Arkansas & Missouri Railroad
The Arkansas & Missouri Railroad is actually an operating freight line although it also operates popular tourist trains in the northwest region of the state. They offer a number of different rides and trips to choose from including the option of riding in first class, club, coach, or even the caboose.
Fort Smith Trolley Museum
The Fort Smith Trolley Museum mostly focuses on covering the
history of interurbans that served the region and to some extent the
general rail system. However, they also offer trolley rides in their
restored trolley #224.
Eureka Springs Model Railroad Company
This little organization is based in Eureka Springs offers a large layout of model trains on display, mostly of Marklin-build.
Eureka Springs & North Arkansas Railway
The Eureka Springs & North Arkansas Railway is based in Eureka
Springs offering a ride behind steam locomotives through 4 1/2 miles of
the Ozarks. The tourist railroad also offers a dinner train.
Frisco Depot Museum
The Frisco Depot Museum (of Arkansas, there is also a similarly named organization in Oklahoma), based in Mammoth Spring, is housed in the town's restored 1886, Missouri Pacific brick depot. The organization provides display inside while a restored caboose sits beside the building. Admission to the museum, located within Mammoth Spring State Park, is free of charge although it is not open on Mondays. For information and planning a visit they have a web page on the park's website.
Related Reading You May Enjoy
Tourist Train Information