Mt. Avalanche (Japanese name: なだれやま Mt. Avalanche) is a dungeon introduced in Pokémon Mystery Dungeon: Explorers of Time and Pokémon Mystery Dungeon: Explorers of Darkness. It also appeared in Pokémon Mystery Dungeon: Explorers of Sky. In Explorers of Time and Darkness, this dungeon was only available when a Secret Wondermail Mission is involved. In Explorers of Sky, it was available through the Spinda Café.
In this dungeon there are twenty floors, throughout the dungeon are traps. The ground is mostly ice on the ground, along with some water. At the peak, is an Icy Flute which, is guarded by the Legendary Pokémon, Articuno who is the 'boss' of this dungeon. There are currently no rest stops in this dungeon.
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