Tran Mariel was the location of a small apartment where the Alliance to Restore the Republic ran an underground holo network. This tiny facility, staffed by just a few personnel, was regarded as fairly typical of a Rebel base.
- The Star Wars Sourcebook (First mentioned)
- Galaxy Guide 2: Yavin and Bespin
- Star Wars Sourcebook, Second Edition
- Galaxy Guide 2: Yavin and Bespin, Second Edition
- Rules of Engagement: The Rebel SpecForce Handbook
- The Essential Atlas