Vault 101 is one of the vault series of fallout shelters developed by Vault-Tec in the northwest area of Washington, D.C., near Tysons Corner. This vault is located northwest of Megaton, and west of Springvale. It was home to the Lone Wanderer until they left to search for their father.
The original and underlying purpose of the Vault 101 vault experiment, was to stay closed indefinitely, in order to study the role of the Overseer when a vault never opened. The limited genetic material would eventually result in inbreeding, had no “new blood” ever entered. Vault 101 was supplied with most of the equipment it would need to function indefinitely, such as seen with spare parts for the water processor, but the vault did not receive a G.E.C.K., a device that would only be useful for surface dwellers.
