Zamak Spayenya

Zamak Spayenya is a great white rock, a league or more across, rising from the steppe. Its top is almost flat, and its sides are very steep, making it a useful temporary redoubt. The limestone contains caves, many of which are decorated with paintings dating back centuries; the place was sacred once. Now, it is little more than a landmark or convenient stopping point. The caves provide shelter, and a pool within the cracks of the rock provides fresh water whilst the slopes provide defence. In the summer, it is not unusual for groups of nomads to meet here, in which case its size is useful in allowing Ungols to keep their distance from one another.

Source
pg. 60
 * Warhammer Fantasy RPG 2nd ED -- Realm of the Ice Queen