The One

The One or The Big One is a unmarked location and world object $$

Background
An undetonated nuclear bomb found slightly west-northwest of the Devil's Throat. It appears if one has the Wild Wasteland trait.

Gameplay
The bomb has a display that reads "9999." Standing in close proximity to the bomb will result in damage between 1-3 rads per second. Depending on the Courier's level, there will be up to four super mutant masters behind the bomb, next to a cave. There are also several Glowing Ones or feral ghoul roamers around the area. Without the trait, there is only a small blackened area of ground emitting a constant 1 rad per second.

Appearances
The One appears only $$

Bugs

 * While the check will say Science 60, the player character will not be able to salvage parts unless their skill is 61 or more.
 * Even with the Wild Wasteland trait, The One may not appear. Instead, a large hole will appear in its place. A possible cause could be picking the Wild Wasteland trait after Old World Blues without having it prior. Enabling The One by console commands followed by  can solve this problem.