Mesa Verde

Mesa Verde is a small cliff dwelling set high in the side of a mesa, somewhere in the American southwest. The people there, called the Ciphers, seem like any other group of tribals. In reality, they're quite skilled in science. They hold onto their secret knowledge in preparation for the day they are once again worthy to use it. The schematics for many a forgotten device is painted all over the village walls, but the few travelers that visit the village are unaware of the significance, dismissing the scribblings as "tribal art".

Appearances in games
Mesa Verde did not appear nor was mentioned in any of the published games, but was to appear in the cancelled Fallout 3 project by Black Isle codenamed Van Buren. It is not certain if it will appear in any future Fallout game, but it is known that Bethesda received all Van Buren design documents from Interplay and might re-use some of the background from them.