Dun Valley is a massive valley in the heart of the western Vashnars, in the shadow of the tall Dun Peak. By some trick of the environment, or, more likely, great magic, part of it remains tropical year-round, and houses a virtual menagerie of beasts.
Within the valley are a tribe of embittered primitive men, upset with the invasion of 'their' valley by the orcs and ogres that inhabit and rule the valley from the massive fortress of Dun.