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
Spawn of Shub-Niggurath (AC 19, MV 120 [land] / 210 [fly], HD 5, Chaotic): a Green annelidoid with a smooth hide, 3 eyes, and a beaked mouth. Regenerate 1 HD every 1-3 rounds.
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.
2702
Village of 130 Dolm Men ruled by "The Master of the Universe," a 1st Level Fighter. He wields a magic sword in battle: on command the sword grants +20 HD, and the saving throws of a 20th level Fighter. Only those chosen by the powers of the Grey Castle may hold aloft the magic sword.
4 Primordial Ones.
2703
Village of 251 Brown Men ruled by "the Star of the Frozen Lightning," a Lawful 7th-level Fighter.
Village of 302 Ulfire Men ruled by a Chaotic 6th-level Sorcerer.
2704
Village of 287 Black Men ruled by a Chaotic 10th-level Fighter.
Castle of 20 Green Men led by a Lawful 5th-level Sorcerer.
2705
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.
A beautiful young woman, an astronaut from Earth, lays wounded in a recently crashed spacecraft. The ship is damaged beyond repair.
2706
4 Mutant Pteranodon (AC 14, MV 30' [150' Fly], HD 7, neutral). Scaled Ulfire hide. Radioactive (if killed explodes for 2 dice radiation damage to all within 100'). Immune to poison.
Spawn of Shub-Niggurath (AC 17, MV 90 [land] / 30 [fly] / 30 [swim], HD 6, Chaotic): a Orange hexapod with a suckered hide, 3 eyes, and no mouth.
2707
Citadel of 141 Ulfire Men led by "the Silent Autocrat upon the Ulfire Throne," a Chaotic 5th-level Sorcerer.
2 Spawn of Shub-Niggurath (AC 13, MV 60, HD 7, Chaotic): a Blue fungoid with a feathered hide, no eyes, and a toothed mouth.
2708
Mutant Archelon lschyras (AC 18, MV 30' [150' Swim], HD 4, neutral). Scaled Jale hide. Breath weapon.
5 individuals of Species 23750.
2709
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.
A Purple Man hangs limp from a tree. He is pierced head to toe by spikes. Two tridents lay near his lifeless body.
2710
2 Mutant Tyrannosaurus Rex (AC 16, MV 150', HD 16, neutral). Furred Green hide. Genius Intelligence (18+ Int) and 1-4 psychic powers.
8 Velociraptors.
2711
Village of 156 Green Men ruled by "the Dragon," a 4th-level Sorcerer. The Sorcerer's research has left him disfigured: he has the scales and tail of a lizard, and is cold blooded.
Village of 282 Jale Men ruled by a Neutral 4th-level Fighter.
2712
Castle of 27 Brown Men led by a Chaotic 8th-level Fighter.
Citadel of 7 Jale Men led by "It of Benedictions," a Chaotic 6th-level Fighter.
2713
Village of 273 White Men ruled by a Chaotic 7th-level Fighter.
Trails of small insects converge on the rocky husk of a massive dead insect. Within an inter-dimensional traveler to Carcosa lays shackled to the ground. Insects crawl in and out of his body. A sorcerer and his minions are in the middle of casting the ritual Canticle of the Crawling God. They will summon the Crawling God in 1-3 hours.
2714
2 Mutant Brontosaurus (AC 16, MV 60', HD 32, neutral). Feathered Dolm hide. Shoots eggs from its butt.
The mutilated bodies of two Ulfire children lay next to the dead body of a Purple Sorcerer. On the Sorcerer's person is a book outlining how to cast The Accursed Sounding of the Void.
2715
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).
Village of 317 Orange Men ruled by a Chaotic 4th-level Fighter.
2716
Castle of 59 Ulfire Men led by "the Lover of All Gifts," a Neutral 6th-level Fighter.
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.