It bears a resemblance to a mine and has a complex network of caves. The mountain becomes filled with snow in winter, providing easier travel to different areas but also blocking off some tunnels. There is also a vending machine.
The Ice Rock is located in the lowest floor of the mountain, accessible from the central construction site. If an Eevee is leveled up on this floor, it will evolve into Glaceon. Located in the tunnel immediately before the Ice Rock is a Worker who will give the player a random Fossil of the Kanto, Hoenn, or Sinnoh regions once a day after receiving the National Pokédex.
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Complete list of trainers during the Winter and Japanese names with translations
Despite the fact that most mountains start their name with "Mt." (an abbreviation of "Mount"), such as Mt. Moon and Mt. Mortar, Twist Mountain instead only has "Mountain" at the end of its name. It shares this trait with Stark Mountain.
The Japanese name of the mountain literally refers to the screw thread.
When the player enters the mountain from Icirrus City, the name of the mountain is not displayed on the screen upon entering.