- Mountain Empire Model Railroaders. Established November 1994. This model railroad club, 100+ members strong, is based in the George L. Carter Railroad Museum and serves the museum as volunteers operating the clubs HO gauge layout, and three other museum layouts of different gauges; HOn3, G and N. The club is made up of members with diverse backgrounds who all enjoy the hobby of model railroading.
- George L. Carter Chapter National Railway Historical Society (NRHS). Established January 2010. This historical society is based in the George L. Carter Railroad Museum and members serve as volunteers in the museum. The NRHS chapter runs two railfan excursions annually and collects and preserves oral histories of Southern Appalachian railroads, railroading and railroad-related experiences.
- East Tennessee & Western North Carolina Railroad Historical Society. Established 1989 by John Waite. The Society has hundreds of members nation-wide who are intent on preserving the history of the narrow gauge line that begin its history and its tracks in Johnson City, TN.
- Johnson's Depot. A web site that documents the early history of Johnson City, TN and its unique railroad roots.
- The Tweetsie Trail is a rails-to-trails project traversing former ET&WNC (Tweetsie) railroad right-of-way between Johnson City and Elizabethton. The trail provides opportunities for walking, hiking, running, biking, etc. on a relatively flat grade in a beautiful, natural setting. The 10-mile trail completed in 2015 is the longest rails-to-trails project in Tennessee!