The cave has a simple layout. A narrow passageway leads to an empty chamber. The chamber branches off into other sections, each with a moderate amount of fire geckos (typically up to nine). In the back of the left chamber, there is a dead super mutant master lying face down with a badly damaged Fat Man in his inventory. However, there are no mini nukes to be found in the entire cave.
A nearly broken Fat Man is found on the corpse of a super mutant master.
The Nopah cave appears only in Fallout: New Vegas.
Behind the scenes
The Nopah cave is located in the same geographical area as the real world Nopah Range, a mountainous region on Nevada's western border with California.
It's possible for the super mutant master to respawn after three days (with another Fat Man and other random loot) with little to no HP. The geckos inside the cave will not respawn but those outside the cave will. [verified]
- Fallout: New Vegas Official Game Guide Collector's Edition Tour of the Mojave Wasteland, p. 298: [1.19] Nopah Cave
"These ancient caverns were once famed for trilobite fossils, but Fire Geckos roam here now."