Elemental Plane of Earth

the entire Elemental Plane of Earth is a single mountain range. The peaks ascend higher than any on the Prime Material Plane, and there is no air to be found at all at high altitudes. It has no sun, although there is enough ambient light to be able to see outdoors. Most residents and visitors, however, can be found beneath these mountains, in a massive network of caves and caverns.

Type

Dimensional plane