Fort Knox

Fort Knox are a great base of Gol in USA. Also is a ancient Plumber Base, unusefull later a battle of Max versus Vilgax in tha past.

Is seen in Ben 10 vs The Negative 10: Part 1, is a one of two bases with one of the keys to open the force shield of Sub energy in Mount. Rushmore. The base is under the attack of Circus troi an Sublimino, they infiltrates in an avandoned base in the Fort and stolen the key.