Lincolnshire Caverns

From BorgoWiki

The entrance to the Lincolshire Caverns lies just north of Ruby City. The caverns were once the famed home of the ancient red dragon, Dethenor, and now are occupied by even more terrible creatures. The caverns are also home to many Drow, including an enigmatic merchant that sells very fine wares to those brave enough to deal with him.

The caverns run very deep and hold many valuable raw materials ranging from gems (phenalopes, amethysts, and topaz) to ores (copper, tin, iron, and adamantine). Many well-seasoned adventurers train in these caverns and hunt for the riches within.