The Ringwall Mountains are the barrier that encircles the lands around Worldstree. They are universally over nine miles high and become almost vertical near their peaks. There are no known passes that do not rise beyond breathable air, and thus they are considered Uncrossable. They mountains rapidly fall in height away from the Edge, petering out into the mere mile high summits that make up the ordinary mountain ranges.

There are several important peaks in the Ringwall. The Astsantse have their City of Glass at the south pole, the StormLord lives in the east pole, the Dragondale at the far west and the Mansion of the Sun is at the far north. The cardinal directions, obviously, maintain a lot of power despite the abscene of comprehensible Geography.