Isis Isis was a terrestrial planet in the Anoat sector of the Outer Rim Territories . The homeworld of the Gutretee , it was a secret Rebel Alliance safe world during the Galactic Civil War , and later became one of the Mining Worlds under the control of the Figg conglomerate . Description . Isis was a crystalline world that was often considered unreachable . Hidden in the fringes of the Ivax Nebula , it could only be reached from Ione on the Corellian Trade Spine via the Ione – Isis hyperroute , a secret hyperlane that passed by the Mining World of Burnin Konn . Isis ' surface was covered with large translucent crystalline mountains and spires . The crystals refracted the incoming sunlight and filled the skies with countless rainbows . The canyons had an average width of 750 m and a height of 12 , 500m . The crystal were rich in minerals and ores , but also disrupted all communications and sensors , even from orbit . Despite its unusual environment , the planet was hospitable to most sentient life . History . Owing to its location in the Ivax Nebula , the planet remained unknown to the rest of the galaxy for a long time . During the last years of the Old Republic , it was discovered and explored by an Alderaanian scouting expedition . Then - First Chairman Bail Organa foresaw the need for a hidden base in an eventual galactic uprising and kept the information about Isis to himself . As the Civil War escalated , Isis became home to those who opposed the New Order , secreted away by Bail Organa . The colonists founded the city of Neskroff , the planet ' s only spaceport , located in a giant crystal mesa . Later engineers joined the colonists as well and the Human population soon reached over 100 , 000 people . The planet ' s natural resources were mined , refined and processed and manufactured into starfighters , making about 30 % of the Rebel Alliance ' s starfighter production capability . In contrast to other safe worlds , the Isis colony enjoyed a relative high level of technology , even having a starport and with several hyperspace - worthy spaceships , including several squadrons of X - wing and Y - wing starfighters . The DP20 frigate " Handree " was also based on the planet . However , due to the crystal ' s disrupting nature , all communication had to be transmitted via fiber - optic s . The native Gutretee were mostly befriended by the colonists and learned to speak basic . Several tribes became sympathetic to the Rebel cause and helped them mining and building , but they were forbidden to ever leave the planet . There were also tribes that remained outright hostile to the Rebels . The coordinates of Isis were a close - guarded secret of the Alliance , although rumors circulated among the Imperials about the base . The Imperial scout vessel " Wanderer " almost discovered the planet during the height of the civil war , but was intercepted by Rebel agents in time . The system itself did not appear on any maps until the New Republic era . The Rebels abandoned the planet soon after the Battle of Yavin . Isis later came under the control of the mining interests of the Figg conglomerate . Inhabitants . Gutretees . The Gutretees were a crystalline , mineral - based mono - gendered species . They lived in primitive , nomadic tribal societies and had the ability to interact with the natural crystals of the planet . Their unique physiology allowed them to copy and absorb each other memories , similar to data - files . Humans . Most of the Humans on Isis were political criminals or similar refugees who had fled here with the aid of Bail Organa during the ascension of the New Order . With the continuing Civil War , more Humans from other society joined the colony .