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, junk, piles of flesh, makeshift shelters, 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.
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 and was lobotomized near the end of the story.
ps3 The 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. [verified]