The guardian of the Mountain Clan's capital is VITHAR. Vithar the Mighty is seated at the right of Wotan at his eternal feast table. He was ordered to guard the capital, never to leave it unprotected.

The Mountain Clan's capital - D1

The Mountain Clan's capital - D2

In Dark Prophecy and the expansions, a captured capital crumbles into ruins.

In Guardians of the Light, the backgrounds are different from Dark Prophecy and there is a different background for each capital. They are real nice. Try to capture a capital, if only once, just for the ambiance.