Mount Ison was first mentioned in the 2016 reference book Star Wars: Complete Locations, in a section written by James Luceno and illustrated by Richard Chasemore, Hans Jenssen, and Kemp Remillard. The location originally appeared in the Star Wars Legends continuity, where it was first mentioned in the 2004 reference book Inside the Worlds of Star Wars Trilogy, which was also written by Luceno, with illustrations by Chasemore and Jenssen.
Mount Ison was first mentioned in the 2016 reference book Star Wars: Complete Locations, in a section written by James Luceno and illustrated by Richard Chasemore, Hans Jenssen, and Kemp Remillard. The location originally appeared in the Star Wars Legends continuity, where it was first mentioned in the 2004 reference book Inside the Worlds of Star Wars Trilogy, which was also written by Luceno, with illustrations by Chasemore and Jenssen.