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| Twist Mountain | | ネジ山
Spiral Mountain | | "Wild Missingno. appeared!" | |
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| Map description: | It has a reputation as a mine littered with valuable ore. |
| Location: | Between Route 7 and Icirrus City |
| Region: | Unova |
| Generations: | V |
Location of Twist Mountain in Unova. |
| Pokémon world locations |
Twist Mountain (Japanese: ネジ山 Spiral Mountain) is a location in Pokémon Black and White and Pokémon Black 2 and White 2. It is located in the Unova region to the north of Route 7 and its eastern terminus is in Icirrus City, and is owned by Clay.
In Black and White, a Worker blocks the player from entering until the Jet Badge is obtained. In Black 2 and White 2, this location is inaccessible before entering the Hall of Fame, since the entrance from Route 7 is blocked by Marshal and the Tubeline Bridge entrance is blocked for weight testing. After entering the Hall of Fame, in addition to these two entrances becoming accessible, Clay completes his tunnel from Driftveil City into Twist Mountain, called the Clay Tunnel.
Due to the presence of an Ice Rock, Eevee can evolve into Glaceon here.
Geography
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| | | Twist Mountain ahead.
Watch out for wild Pokémon. | | | |
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Twist Mountain 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; from inside, these tunnels are blocked off by a traffic cone. 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. The type of Fossil can be changed by soft resetting, similar to a mass outbreak.
Truck Quiz (TruQ)
In Black 2 and White 2, a Worker near the entrance to Icirrus City will quiz the player, asking one question each day. If the player gets a question wrong, they must wait until the next day to try again. Answering all five questions correctly earns the player the Heavy Machinery Pro Medal.
Questions asked:
| Question | Answer |
| Which place is famous for an old rusty crane truck? | Virbank City |
| Trucks on Route 4 come in three different colors: red, blue, and...what? | Yellow |
| Which question is this? | Third question |
| Which Gym has a yellow drill car? | Driftveil City Gym |
| How many bulldozers are there in Twist Mountain? | Two |
Items
Entrance
Inside
| Item | Location | Games |
 | Revive ×2 | - Main floor, in the north
- Western cave, in the middle (hidden)
| B W |
 | Full Heal | Main floor, in the south | B W |
 | Hyper Potion | Southern cave, in the wall northeast of Hiker Darrell (hidden) | B W |
 | Stardust ×3 | - Eastern cave, upper part, on the second pile of dirt (hidden)
- Eastern cave, lower part, on the pile of dirt east of Worker Rob (hidden)
- Main floor, in the north (hidden)Winter
| B W |
 | Moon Stone | Eastern cave, eastern end of the upper part, behind Worker Heath | B W |
 | Max Potion | Main floor, middle level, in the east | B W |
 | Ether | Main floor, middle level, in the west | B W |
 | Nugget | Western cave, in the middle | B W |
 | Elixir | Western cave, southwest corner (hidden) | B W |
 | PP Up | Western cave, northwest corner | B W |
 | Ultra Ball | Northern cave, lower part, northwest of Black Belt TeppeiSpringSummerAutumn | B W |
 | Protein | Northern cave, lower part, on a pile of dirt near Black Belt Teppei (hidden)SpringSummerAutumn | B W |
 | TM91 (Flash Cannon) | Lowest cave, east of Ice Rock | B W |
 | TM90 (Substitute) | Northern cave, in the middle, west of Ace Trainer JordanWinter | B W |
 | Metal Coat | Little eastern caveWinter | B W |
 | Iron | Main floor, in the northeast (hidden)Winter | B W |
 | Rare Candy | Main floor, in the east (hidden)Winter | B W |
 | Helix Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Dome Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Old Amber | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Root Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Claw Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Skull Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Armor Fossil | Gift from Worker in tunnel outside the Ice Rock after obtaining the National Pokédex (one per day, selected randomly) | B W B2 W2 |
 | Dusk Ball | Cave north of the worker's shed, west of Worker VictorSpringSummerAutumn | B2 W2 |
 | TM71 (Stone Edge) | Lowest cave, east of Ice Rock | B2 W2 |
| | TM91 (Flash Cannon) | West of Nurse Carol | B2 W2 |
| | TM90 (Substitute) | Next to Veteran Chloris | B2 W2 |
 | Rare Bone ×2 | | B2 W2 |
 | Full Restore ×2 | | B2 W2 |
 | Dusk Stone | East of Worker Gus | B2 W2 |
 | Float Stone | On the south end of the highest tier of planks | B2 W2 |
 | Red Shard | On the north end of the highest tier of planks | B2 W2 |
| | Ultra Ball | Southwest corner of the cave Veteran Chloris can be found (hidden) | B2 W2 |
 | Yellow Shard | Inside a boulder south of Worker Patton (hidden) | B2 W2 |
 | Eject Button | South of Worker RyanWinter | B2 W2 |
| | Rare Candy | Northeast of Worker Ryan (hidden)Winter | B2 W2 |
 | Big Nugget | East of Veteran ZachWinter | B2 W2 |
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Phenomenon
Pokémon
Pokémon Black and White
| Pokémon | Games | Location | Levels | Rate |
| Sp | Su | Au | Wi |
| B1F-3F |
| | B | W | | 28-31 | 49% | 45% | 49% | - |
| | B | W | | 29-30 | - | - | - | 30% |
| | B | W | | 29-31 | 10% | - | 10% | - |
| | B | W | | 28-31 | - | 20% | - | - |
| | B | W | | 28-30 | - | - | - | 10% |
| | B | W | | 28-30 | 30% | 30% | 30% | - |
| | B | W | | 29 | - | - | - | 10% |
| | B | W | | 28 | 10% | 4% | 10% | - |
| | B | W | | 28-31 | - | - | - | 45% |
| | B | W | | 31 | 1% | - | 1% | 5% |
| | B | W | | 28 | - | 1% | - | - |
| Dust clouds |
| | B | W | | 28-31 | 100% |
| 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. |
Pokémon Black 2 and White 2
| Pokémon | Games | Location | Levels | Rate |
| Sp | Su | Au | Wi |
| B1F-3F |
| | B2 | W2 | | 57 | 5% |
| | B2 | W2 | | 54-55 | 40% | - | 40% | - |
| | B2 | W2 | | 54 | - | 20% | - | - |
| | B2 | W2 | | 55 | - | - | - | 20% |
| | B2 | W2 | | 54 | 10% |
| | B2 | W2 | | 55 | 10% | 20% | 10% | 10% |
| | B2 | W2 | | 56 | 10% | 5% | 10% | - |
| | B2 | W2 | | 54 | - | - | - | 20% |
| | B2 | W2 | | 57 | 5% | 5% | 5% | - |
| | B2 | W2 | | 56-57 | - | - | - | 15% |
| | B2 | W2 | | 56 | 5% | - | 5% | 5% |
| | B2 | W2 | | 55-56 | - | 20% | - | - |
| | B2 | W2 | | 56-57 | 15% |
| Dust clouds |
| | B2 | W2 | | 54 | 20% |
| | B2 | W2 | | 57 | 5% |
| | B2 | W2 | | 54-57 | 75% |
| 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. |
Special encounters
Pokémon Black 2 and White 2
A Regigigas appears in the room behind the Ice Rock on the first visit. Regirock, Regice, and Registeel must be in the party in order to battle it. If defeated or run from, it respawns after entering the Hall of Fame.
Trainers
Pokémon Black and White
Entrance
| Trainer | Pokémon |
 | | | Hiker Terrell
ジロウ Jirō
Reward: $1088
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- After earning the Jet Badge
If the player chose Snivy:
 | | Reward: $3500 | | | |
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If the player chose Tepig:
| | | Reward: $3500 | | | |
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If the player chose Oshawott:
| | | Reward: $3500 | | | |
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Inside
Non-winter only
| Trainer | Pokémon |
 | | | Hiker Neil
ノボル Noboru
Reward: $1088
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Winter only
Pokémon Black 2 and White 2
Non-winter only
| Trainer | Pokémon |
 | | | Hiker Hunter
ゴウゾウ Gōzō
Reward: $1952
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 | | | Worker Victor
カツジ Katsuji
Reward: $2440
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Winter only
Layout
Exterior and upper levels
Lower levels
In the spin-off games
Pokémon Masters EX
Artwork depicting Twist Mountain is seen in Clay's mindscape.
In the anime
Twist Mountain in the anime
Twist Mountain first appeared in A Restoration Confrontation! Part 1. While being lost on their way through the mountain, Ash and his friends met an archeologist named Ferris and his friend Sierra. After uncovering a Cover Fossil, Ferris told the group how he had once been transported to the prehistoric time while exploring Twist Mountain as a child and befriended a Tirtouga in that time, although Sierra was convinced he had just been dreaming. Team Rocket then appeared and stole the Cover Fossil, revealing that their plan was to revive it, use the revived Tirtouga to lead them to the time portal at Twist Mountain, and use its life energy to maintain the portal long enough for them to steal the ancient Pokémon of the past for themselves. Using stolen information and resources, they successfully revived the Cover Fossil into a Tirtouga, which Ferris recognized as the same one he had met as a child.
In A Restoration Confrontation! Part 2, after Tirtouga had evolved into Carracosta, it traveled to the time portal, only for Team Rocket to attack it and use its life energy to expand the portal. However, before they could travel into the past, Ash, his friends, and more Carracosta from the past intervened, and Team Rocket was eventually forced to escape without any Pokémon. Before the time portal closed for good, Ferris returned his childhood friend Carracosta back to its own time through it and bid it farewell.
In the manga
Pokémon Adventures
In the original release of Defeating Stoutland, Clay told Lenora that he had found the Dark Stone at Twist Mountain. However, following the release of volume 44 and the addition of a new scene at the beginning of Lights, Camera...Action!, depicting the discovery of the stone, this was changed to Desert Resort.
In Mine Mayhem, Clay told some of his Workers to return to Twist Mountain following a briefing at the Driftveil Gym.
In the TCG
This listing is of cards mentioning or featuring Twist Mountain in the Pokémon Trading Card Game.
Trivia
In other languages
