Alysse the Likely
To the south their only trade partner are trolls residing in the equally named mountains. Though they often ally on their raids it is unknown if the trolls have something worth to trade.
There are no specific Ban-Yuk housings worth mentioning. Ban-Yuk sleep on the ground using rough materials or just rocks to lean up against for aid in sleeping. That is unless a cave is overthrown by an ogre and he defeats any trolls living within it. Then the ogre sleeps with shelter. Caves are kept strictly to one ogre. That would be the ogre who owns the cave. If any others challenge for the cave, they will have to take on the owner. Inside a cave is a set place for a fire to keep warm on cold nights. The circle is usually just a set amount of wood that is partially burned or ashes that have been set about. Other than that the cave is not really used to store anything, or do anything else but provide shelter for sleep at night.