Spiral Mountain



The Spiral Mountain (in Japanese: スパイラルマウンテン, Supairaru Mauntin) is the large mountain structure that the Digital World is reconfigured into by Dark Masters when they finaly take over whilst DigiDestined traveled to Earth to stop Myotismon.

The mountain consists of Four diffrent types of land which spiral from the ground to the top where Piedmon's Palace sits. The four types are Ocean, Forest, City and Darkness which are each linked to one of the Dark Masters, MetalSeadramon,Puppetmon, Machinedramon and Piedmon respectably.

Creation
In the anime Spiral Mountain was created off screen whilst the DigiDestined Children were pursuing Myotismon who had invaded Earth to find the Eigth Child with us only getting a brief explanation from Chuumon. The Novelization of the series give more background, revealing that it was created by a computer program created by Datamon which sorted the elements of the Digital World into individual components and built the Mountain. The idea of dividing areas into belts that twisted into a fourfold spiral was modeled after a description of “Spiral Mountain” that appeared in the Digimon Book of Revelations.

In the the third book of the Novel series, we see an account of Leomon experiencing the reshaping of the Digital world first hand with the old mountains and kand being swept into the sky one after the other. This account has many Digimon being killed during the progress, some being swashed between Rocks and others being ripped apart. Leomon lands in Piedmon's Dark land which was a simple, desolate, petrified-looking plain that stretched for miles. He finds encounters a group of other Digimon but he sees them get enveloped by a Black gas which takes over the Digimon and causes them to fight and kill each other.

Leomon then crosses over the boundary between the diffrent lands, moving into the City scape controled by Machinedramon where he finds the resistance movement lead by Andromon and finds out about the program. He questions how the Dark Masters got the massive amount of power needed to change the Digital world and is told that they didn't but instead they sealed around the powers that would have opposed it, the four holy beasts.