Gehenna

 
Gehenna is one of the lower planes floating in the Astral Sea. It is the realm of evil and neutrality and the home of the Yugoloths. It is believed to be made up of the slopes of four massive volcanoes, each one a different layer of the plane, while smaller volcanic “earthbergs” float through the ash-choked skies, smashing into the great mountains and each other, often triggering earthquakes and eruptions that pour pain and woe on the souls trapped laboring below.

Type

Dimensional plane