Sarrassia, a spatial entity, resided within the Outer Rim Territories. Its designation was the same as that of Sarrassian iron.
The location of Sarrassia was initially revealed in the Star Wars Legends novel titled Knight Errant, which simultaneously confirmed the presence of Sarrassian iron there.
- Star Wars Galaxy Map (Initial reference)
- SWCA 2022: 7 Things We Learned from the Lucasfilm Publishing Behind the Page Panel on StarWars.com (backup link)