heres a coulple of alternatives for the dwarves or any mountain dwelers you may want to include in your scenario. I'm going to use the hill/cave complex object to make an Orc/goblin stronghold too, but Ive not decided what sort of buildings they would have, maybe rude huts or tents, or jsut living in the mountians them selves, with waste & spoil & trophies to show how big the settlement is...
Any way this is the first, A hill side dwarf stronghold with caves;