Mt Bezulb

The only active volcano in Azgaarnoth, it has been active for many centuries, constantly putting forth a steady stream of lava and periodically (every several decades or so) erupting more forcefully. Some scholars posit that this is something to do with the emergence of the drow, others say that the constant eruption is encouraged by dwarves under the earth who require the volcanic activity in order to work with mithral and adamantine metals.