Sanctuary

Sanctuary was a planet in the Outer Rim Territories that was a safe world of the nascent Alliance to Restore the Republic. A map of the galaxy with a legend listed the various Alliance safe worlds, starfighter hubs at level five or higher, rebel operations sectors and regional headquarters, and shadow planets with deep space caches.

The map would be included in The Rebel Files and after it was rediscovered on Durkteel in 34 ABY and handed to the Resistance, Major Caluan Ematt and General Leia Organa wrote annotations.

Behind the scenes
Sanctuary was first mentioned and pictured in canon in the 2017 reference book and boxed set by Daniel Wallace, Star Wars: The Rebel Files.