The Barrow is an elevated place framed by stone columns. The slanted remains of stone columns and great boulders lie about everywhere – just like in the Crushed Plain. This was the place were demons formerly performed their sacrificial rituals. The ancient, monolithic stone formation is at its center.
Even though humans already settled in the Howling Mountains, for some reason a group of kobolds banded together to drive them out. Their surprise attack was successful and the humans settled elsewhere.