|The following is based on Van Buren and is not canon.|
In 2062, many Mormon congregations came together to purchase places in Vault 70. The vault was opened in 2190, and its inhabitants used their three Garden of Eden Creation Kits to found the town of New Jerusalem.
Vault 70 was planned for inclusion in the canceled Van Buren project.
Behind the scenes
In the Fallout Bible, Vault 70 was mentioned as a vault that had its jumpsuit extruders fail after six months.