This is very much a work in progress. (As evidenced by the repeating entries you might see below.) Anyway, here are 16 random hexes.
2701
2 Spawn of Shub-Niggurath (AC 13, MV None, HD 6, Chaotic): a Blue ophidioid with a suckered hide, 4 eyes, and a toothed mouth.
A Jale Man Sorcerer (AC 16, MV 120', HD 8, Neutral) wearing a Red breast plate sits on a giant Cthulhu shaped throne, alone at the lowest levels of the Cavern of the Time Lords. He may share his knowledge of Carcosa with those who seek him out.
2702
A humanoid robot (AC 16, MV 90', HD 4, Chaotic) guards the remains of a crashed alien spaceship. He is armed with a sword and a laser pistol. His 3 large eyes rotate about his head. He can not be surprised and will react with hostility to all who approach.
Spawn of Shub-Niggurath (AC 16, MV 120 [land] / 150 [swim], HD 5, Chaotic): a Red ooze/slime with a suckered hide, 6 eyes, and a beaked mouth. Immune to heat/fire.
2703
Spawn of Shub-Niggurath (AC 12, MV None, HD 3, Chaotic): a Yellow amoeboid with a smooth hide, no eyes, and multiple mouths.
Hidden underground lair of 43 Blue zealots led by a Lawful 5th-level Sorcerer.
2704
What appears to be a simple rock is in fact The Starseed, a source of unlimited power. At any given time there are at least 1-6 high level sorcerers actively searching for the artifact.
1 Mummy Brain.
2705
Mutant Brontosaurus (AC 16, MV 60', HD 32, neutral). Feathered Blue hide. Genius Intelligence (18+ Int) and 1-4 psychic powers.
Citadel of 10 Dolm Men led by a Lawful 9th-level Fighter.
2706
12 Black Men led by putrid smelling Sorcerer (AC 18, MV 120', HD 3, Chaotic) are in the middle of casting Manifestation of the Putrescent Stench. The Sorcerer is armed with a laser pistol and wears a bright orange alien space suit.
A Green Man cyborg (AC 18, MV 60', HD 6, Lawful) leads a battalion of 3-12 soldiers armed with an assortment of Alien weaponry. The cyborg will repair any Alien technology Lawful PCs may possess, and will attack any PCs who make their allegiance to the forces of Chaos known. He is searching for his adopted daughter.
2707
Spawn of Shub-Niggurath (AC 17, MV 150 [land] / 180 [fly] / 120 [swim], HD 6, Neutral [intelligent]): a Black arachnoid with a suckered hide, 3 eyes, and a toothed mouth. Surprised only on a 1.
A young Red Man child weeps alone. He has no possessions save his clothes, and is hungry.
2708
Village of 308 Blue Men ruled by a Neutral 5th-level Sorcerer.
A disfigured two-headed mutant man lays face down in the ground. His body is half purple & half blue. Characters who investigate the body must make a Save vs. Death Ray each turn or suffer a random mutation.
2709
A Blue Man (AC 16, MV 120', HD 2, Lawful) with a cybernetic augmentation that allows him to extend his head several meters above his body is surveying the wilderness. He is armed with a bright yellow mace and can not be surprised.
Village of 366 Brown Men ruled by "the Silver Fist," a Lawful 6th-level Fighter. The Silver Fist rides into battle on cybernetic horses and wields a mysterious purple sword.
2710
Village of 336 Brown Men ruled by "the Wielder of Delicate Countenance," a Chaotic 8th-level Fighter.
Castle of 68 Blue Men led by a Lawful 6th-level Sorcerer.
2711
A foreboding grey castle sits empty save for its custodian, an Orange Woman 18th-level Sorcerer. The castle is circumscribed by a bottomless chasm. A single bridge leads to its imposing doors shaped in the visage of a skull. The sorcerer will not leave the castle, and is immortal and invulnerable while within its walls. She will aid all those who actively seek to defend Carcosa from the forces of Chaos.
A party of 2-8 inter-dimensional travelers search for their lost companion. They are armed with turn of the century firearms: pistols & shotguns. They are cautious around and distrustful of any natives of Carcosa they encounter. They will however aid anyone who agrees to help them find their friend.
2712
1 Deep One.
Spawn of Shub-Niggurath (AC 13, MV 240 [land] / 90 [fly], HD 1, Chaotic): a Bone insectoid with a furred hide, 5 eyes, and a toothed mouth. Immune to heat/fire. Immune to poison.
2713
5 Pterodactyls.
4 Mi-Go.
2714
Two Purple men lay dead on the ground. One is holding a gamma radiation riffle with 10 charges left. There is a 1 in 6 chance the rifle will also irradiate the shooter when discharged.
Castle of 37 Orange Men led by a Neutral 6th-level Fighter.
2715
The bodies of countless Red Men spill out of a door set into the side of a mountain and completely fill the 10' wide shaft leading into the underground. Obscured by the bodies are ancient Snake Men runes describing 2-8 random sorcerous rituals.
Citadel of 84 Green Men led by "the Overseer of the Hills," a Neutral 4th-level Fighter.
2716
Strange ritual space made up of crucified Yellow Man, small clay jars of water and dried herbs.
A floating circular platform of Space Alien technology hovers 15' above the ground. 1 in 6 chance to figure out how to operate (intelligence modifier applies, only one attempt per character). Can be moved at a rate of 10' per turn. 3 Bone Men with spears have built a hut on top, and "desert fishing lines" hang from the platform. The Bone Men are extremely xenophobic (reaction roll penalty of 2). One of the Bone Men has 2 sleep gas grenades (as sleep spell but a save versus paralysis applies, 30' blast radius).