Just found me a site that by surface look of it has nothing of intrest in any of the entire 16x16 map area that contains heavy forest and only one page of above ground mobs, but revealed near the bottom of the map is a 10x10x10 level micro spot that contains six pages of mobs, a magma pipe, chasm, underground river, bottomless pit, adamantine veins, bituminous coal, and several other stuff from it to the surface that is a limestone/dolomite mountain hitting a black sand and clay river speckled with rocksalt and a heavily haunted forested chunk....all in a world that appearently started with six still alive named dragons wiping out half of elven kind while being prayed to by dwarves, and most of the other half of the elves being taken over by goblins that got taken over by dwarves, beside one lone forest retreat, six masterful dragons taking residence in caves nearly smack on top of each other, and at least five 6x6 sites with magma, underground rivers, and chasm or bottomless pits, it has the main dwarf/goblin/elf slave civ controlled by a named demon....my guess is that a gen error stuck all this stuff together....
Its called by the RNG Atoloddom Gasol (The True Cloisters of Breath) which sounds about right.
I'm keeping the gen data a closely gaurded secret, this thing is like the result of the holy grail, and chuck norris on cranke's child with god and toady's child's child...