The Istabith range existed as a mountain range situated on the Core Worlds planet of Alderaan. These mountains were named after the Istabith Falls, which were waterfalls also found on Alderaan. During the Imperial Era, a garrison bearing the same name was positioned near the Istabith range, and it housed multiple guards connected to the Royal Palace of Alderaan.
In 3 BBY, Princess Leia Organa, an Alderaanian, along with some palace guards, journeyed in a suborbital jumper in the direction of the Istabith range with supplies to deliver. Partway through the trip, the vessel halted, allowing Organa to get off at her pathfinding class's chalet before the guards proceeded to finish their resupply mission. By 0 BBY, the Galactic Empire's Death Star battle station destroyed the Istabith range, along with the rest of Alderaan.
The Istabith range is referenced within Leia, Princess of Alderaan, a young-adult novel from 2017 authored by Claudia Gray.