- "An Imperial base these past seven years and HQ for the 407th Stormtrooper Division. And now my new home as well."
- ―Anson Trask
The headquarters 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.
- Legacy 4: Noob (First appearance)
- The Complete Star Wars Encyclopedia (See 407th Stormtrooper Division)