The Pantheon shattered the Old Gods’ citadels and chained the five evil gods far beneath the surface of the world. Without the Old Gods’ power to keep their raging spirits bound to the physical world, the elementals were banished to an abyssal plane, where they would contend with one another for all eternity. This plane is called the Elemental Plane.

The Elemental Plane is a three-tiered realm, with layers much like an onion, surrounding the sun in the core of the planet. It would look like an ordinary spherical planet to an outsider, with realm of air (Skywall) floating above the oceans(Abyssal Maw) and single continent(Deephome), with Firelands as the deepest and outer ring. From the inside out, the top layer is the domain of Air, the middle layer the domains of Water and Earth, and the lowest layer is the domain of Fire.

The domain of Air is called The Skywall, the domain of Earth is called Deephome, the domain of Fire is called The Firelands, and the domain of Water is called The Abyssal Maw.

Knowledge about the Elemental Plane is entirely from Warcraft lore and books, and it does not appear and there is very little reference to it in World of Warcraft.