On Earth-247, the Legion of Super-Heroes decided to branch off their headquarters in Earth in the wake of an expanding roster and set up a second headquarters to be orbited in space. The Legion Outpost's official name was Outpost Allen, named after fallen Legionnaire Gim Allon. It was a repurposed research station from the United Planets. A major section of the Outpost was swallowed by a spatial rift and served as the home for the Legionnaires lost in Legion Lost, being modified into a make-shift space cruiser. When the Legionnaires returned home, it was presumably inoperable. If not, it was destroyed alongside all of Earth-247 during Infinite Crisis.