An Imperial base belonging to Darth Krayt's Galactic Empire was located on the planet Yinchorr. During the Second Imperial Civil War, it was the headquarters of many Imperial military units, including the 407th Stormtrooper Division.
The based consisted of several low, domed structures on the surface of the planet. The HQ was established in 130 ABY and served as the division's headquarters for more than seven years. Upon joining Joker Squad, Anson Trask was sent by shuttle to the Yinchorr headquarters, shortly before the squad moved out to participate in the Battle of Borosk.
- The Complete Star Wars Encyclopedia, Vol. I, II