The Vault - Fallout Wiki

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The Vault - Fallout Wiki
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Fallout: New Vegas locations project
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The Cuckoo's Nest
Cuckoos Nest.jpg
Icon cave.png
Cuckoos Nest loc.jpg
Map MarkerThe Cuckoo's Nest
QuestsAll My Friends Have Off Switches
Cell NameNVDLC03SLCuckoosNest (exterior)
NVDLC03SLCuckoosNestINT (interior)
ref idxx001160 (exterior)
xx006880 (interior)
Gametitle-FNV OWB.png
Gametitle-FNV OWB.png

The Cuckoo's Nest is a location in the southwest of Big MT in 2281.


Situated east of the X-7a "Left Field" artillery launch, The Cuckoo's Nest is a circular cave with a large outcropping in the center. The cave appears to be a lobotomite den and is littered with corpses, piles of flesh, makeshift shelters and beds and what appears to be a shrine to The Toaster. There are several hostile lobotomites within the cave including the unique lobotomite, Test Subject 1.

Notable loot

Related quests


  • A number of dolls, resembling those coveted by the swampfolk of Point Lookout are hanging from the I.V. stand beside the surgical table near the back of the cave.
  • Below the slope that leads to the cave opening are four graves which can be opened with a shovel. They tend to contain ammunition and/or weapons.
  • As you approach the cave opening, just below it to the right at the bottom of the slope, there is a shiny locker with an Old World Flag painted on its door in blue. Presumably it was painted by Ulysses, whether he intended it to mark this place specifically or if it was moved here by a lobotomite from elsewhere is unknown.
  • Lobotomites will repeatedly respawn if the cave is cleared earlier.
  • This location is prone to slow-down. The area around it may lag significantly, making the cave nearly impossible to get to, and made even more unpleasant by the horde of lobotomites wandering around outside. The lag seems similar to that found in Westside when fast-traveling to Miguel's Pawn Shop, prior to the recent patches.


The Cuckoo's Nest appears only in the Fallout: New Vegas add-on, Old World Blues.

Behind the scenes

  • This area is a reference to the 1962 novel One Flew Over the Cuckoo's Nest, where the main character had electroshock "therapy" conducted on him to render him docile.
  • In addition, there is a much more (and somewhat comically) literal reference to the title "One Flew Over the Cuckoo's Nest" in that the giant artillery gun is aimed to fire a shell almost directly over this area.