Western Forest

Description
Hidden from any curious eyes, in a small valley north of the Northern Forest, lies the Valley of the Goblins, the home of a race of bloodthirsty Goblins. It is a dangerous place for all intruders, as the Goblins are brutal and merciless killers. Only a secret network of tunnels enables entrance to this otherwise closed-off valley.

In Ultima VII Part Two, the Avatar managed to enter the valley and killed all the Goblins to reclaim the Helm of Courage.