The One

 is a undetonated bomb in Fallout: New Vegas, which only appears if the player has chosen the Wild Wasteland trait.

Characteristics
The player can salvage components (energy cells, microfusion cells and 2 sensor modules) from The One with a science skill of 60 or more. You get +1 radiation when next to the bomb. There are three super mutant masters near it (one with a missile launcher, one with a light machine gun, and one with a minigun, the weapons the mutants have may vary). There are also a couple Glowing Ones roaming around in this area.