Gamma Base, Nevada, is the repository of the quiescent Dr. Bruce Banner and others. It is located in a subterranean nuclear detonation cavity. There are numerous protective measures employed. All are Classified. There are various high security cells at the three mile deep main facility, informally called “Hulkbuster Base.” The self-contained base uses a cold fusion energy system. The existence of extensive underground magnetic-levitation railways has been confirmed. The three-mile deep base has several “fail-safe” measures in the event of a catastrophe that are Classified.