From Bulbapedia, the community-driven Pokémon encyclopedia.
Mt. Snowfall (Japanese: ユキミやま Mt. Yukimi) is a location in Pokémon Channel. It can be visited by traveling on the bus once the Snowfall Pass has been obtained from the shopping channel.
The Ruins of Truth are found on the mountain, though they can not be visited until the fifth day of the game.
Ruins of Truth exterior
Ruins of Truth interior
- This is the only location in the game that doesn't have rain.