Underground Ruins

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Underground Ruins 地底遺跡
Underground Ruins
"Wild Missingno. appeared!"
Underground Ruins plain B2W2.png
Map description: {{{mapdesc}}}
Location: Clay Tunnel
Region: Unova
Generations: V
Unova Clay Tunnel Map.png
Location of Underground Ruins in Unova.
Pokémon world locations
Rock Peak Chamber

The Underground Ruins (Japanese: 地底遺跡 Underground Ruins) is an area located within the Clay Tunnel.

The legendary golems, Regirock, Regice, and Registeel, can all be found here. Which of the golems encountered depends on various conditions. Regirock can be found in the Rock Peak Chamber (Japanese: いわやまのま Rock Mountain Room) once a puzzle is solved. Registeel requires the Iron Key to unlock the Iron Chamber (Japanese: くろがねのま Iron Room), while Regice requires the Iceberg Key to unlock the Iceberg Chamber (Japanese: ひゅざんのま Iceberg Room). The Iron Key can only be found in Black 2 and the Iceberg Key can only be found in White 2; the key that cannot be found in one version can be sent through Unova Link from another game.

If all three legendary golems caught here are present in the player's party, Regigigas can be awakened in Twist Mountain.


  Pokémon     Games     Location     Levels     Rate  
095 Onix
B2 W2
Cave Cave
57  %
299 Nosepass
B2 W2
Cave Cave
55, 57  %
305 Lairon
B2 W2
Cave Cave
55, 57  %
525 Boldore
B2 W2
Cave Cave
54-55  %
527 Woobat
B2 W2
Cave Cave
54  %
632 Durant
B2 W2
Cave Cave
54  %
Dust clouds
095 Onix
B2 W2
Dust cloud Dust cloud
54  %
530 Excadrill
B2 W2
Dust cloud Dust cloud
54-57  %
Special Pokémon
377 Regirock
B2 W2
Premier Ball Only one
65 One
378 Regice
B2 W2
Premier Ball Only one
65 One
379 Registeel
B2 W2
Premier Ball Only one
65 One
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 location is based on Sealed Chamber in Hoenn, and the two locations share the same background music.

In other languages

Language Title
France Flag.png French Ruines Enfouies
Germany Flag.png German Unterirdische Ruine
Italy Flag.png Italian Rovine Sotterranee
Spain Flag.png Spanish Ruinas Subterráneas

Game locations of Legendary and Mythical Pokémon
Kanto Seafoam IslandsPower PlantVictory RoadCerulean Cave
Route 10Route 25Pewter CityRoaming Pokémon
Sevii Islands Mt. EmberNavel RockBirth Island
Johto Ilex ForestBell TowerWhirl IslandsMt. Silver
Burned TowerEmbedded TowerRoaming Pokémon
Hoenn Desert RuinsIsland CaveAncient TombCave of OriginMarine Cave
Terra CaveSky PillarSouthern IslandSea MauvilleScorched Slab
Pathless PlainNameless CavernFabled CaveGnarled Den
Trackless ForestCrescent IsleSkyRoaming Pokémon
Sinnoh Acuity CavernValor CavernSpear PillarTurnback Cave
Rock Peak RuinsIceberg RuinsIron RuinsSnowpoint TempleStark Mountain
Newmoon IslandFlower ParadiseHall of OriginRoaming Pokémon
Unova Guidance ChamberTrial ChamberRumination FieldN's CastleAbundant Shrine
Giant ChasmDragonspiral TowerLiberty GardenRoute 11Route 13Route 22
Route 23Celestial TowerNacrene CityUnderground RuinsTwist Mountain
DreamyardMarvelous BridgeReversal MountainRoaming Pokémon
Kalos Sea Spirit's DenTeam Flare Secret HQTerminus Cave
Unknown DungeonRoaming Pokémon
Alola Route 16Altar of the SunneAltar of the MooneMount LanakilaMahalo Trail
Ruins of ConflictRuins of LifeRuins of AbundanceRuins of Hope
Lake of the SunneLake of the MooneTen Carat HillResolution Cave
Other Faraway IslandDistortion WorldSinjoh RuinsUltra Space Wilds

Trio Badge.png Basic Badge.png Insect Badge.png Bolt Badge.png Quake Badge.png Jet Badge.png Freeze Badge.png Legend Badge.png
Basic Badge.png Toxic Badge.png Insect Badge.png Bolt Badge.png Quake Badge.png Jet Badge.png Legend Badge.png Wave Badge.png
Nuvema TownAccumula TownStriaton CityNacrene CityCastelia CityNimbasa CityAnville Town
Driftveil CityMistralton CityIcirrus CityOpelucid CityPokémon LeagueLacunosa TownUndella Town
Black CityWhite ForestAspertia CityFloccesy TownVirbank CityLentimas TownHumilau City
Bridges and tunnels
Skyarrow BridgeDriftveil DrawbridgeTubeline BridgeVillage BridgeMarvelous BridgeMarine Tube
DreamyardWellspring CavePinwheel ForestLiberty GardenDesert ResortRelic CastleBattle SubwayLostlorn Forest
Cold StorageMistralton CaveChargestone CaveCelestial TowerTwist MountainDragonspiral TowerMoor of Icirrus
Challenger's CaveVictory Road (BWB2W2) • N's CastleRoyal UnovaGiant ChasmUndella BayAbyssal Ruins
Abundant ShrinePoké Transfer LabP2 LaboratoryEntralinkUnity TowerFloccesy RanchPledge GroveVirbank Complex
Pokéstar StudiosCastelia SewersJoin AvenueCave of BeingPokémon World TournamentReversal MountainPlasma Frigate
Clay TunnelUnderground RuinsStrange HouseRelic PassageSeaside CaveWhite TreehollowBlack Tower
Access to
Nature Preserve

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