Terran's Ponderous Campaign
Caldera City is situated in the north of Kalifaa near the borders of Ashland, Argento, and Saamlald. The area is mountainous and includes a few old dormant or extinct volcanoes. There is a sizable dwarven contingent in the population. The Simmerhorns are a prominent family there. They take their name from The Simmerhorn, one of the volcanoes.