Ison Mountain was a mountain situated on the ice-covered world of Hoth. It sat to the north of the North Ridge. This mountain's designation was the same as the planet called Ison, which was part of the Ison system; both Hoth and Ison resided within the Anoat sector.
The initial mention of Ison Mountain occurred within the 2016 reference work, Star Wars: Complete Locations. This section of the book was authored by James Luceno and visually represented by Richard Chasemore, Hans Jenssen, along with Kemp Remillard. The location's initial appearance was in the Star Wars Legends continuity, specifically in the 2004 reference book Inside the Worlds of Star Wars Trilogy. Luceno also wrote this earlier book, and Chasemore and Jenssen provided its illustrations.
- Star Wars: Complete Locations (Initial mention)