Ultoksamrin

Ultoksamrin, was one of the subkingdoms of Deep Shanatar. After the dwarven kingdom fell, it was split among non-dwarves.

Geography
Ultoksamrin was situated beneath the eastern Marching Mountain in Calimshan and the Forest of Mir. The former subkingdom consisted of the ruling cavern, a 1000ft. high grotto, a mile beneath Mount Sarengard and of several tunnels.

Structure
After the fall of the dwarves lost Ultoksamrin, the former subkingdom of Old Shanatar was emptied of dwarves. By 1372 DR, several non-dwarf races occupied territory in Ultoksamrin’s tunnels. The different races fought over additional territory. The ones who were most successful at it were the drow. These drow were followers of the deity Vhaeraun and were escapees from Guallidurth, from where they fled religious persecution. They were situated in the Vault of Cloaked Midnight, the cathedral city. The temple of the city covered about half of the ruling cavern and the drow lived in former clanholds of the dwarves for protection.