Underground Ruins

Underground Ruins 地底遺跡
Underground Ruins
"Wild Missingno. appeared!"
Underground Ruins entrance 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

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

The legendary giants, Regirock, Regice, and Registeel, can all be found here, depending on which Key is active. Originally, the rooms of the ruins only provide hints on to how to open Regirock's chamber (which hint is available depends on if "the sun" or "the moon" is out), but fulfilling the conditions will change the great door into the entrance of Regirock's chamber and all other chambers activated by Keys.

Regirock can be found in the Rock Peak Chamber (Japanese: 岩山の間 Rock Mountain Room), which is opened when the player presses the A-button after walking 6 steps down and then 9 steps right, from the center of the panel just before the great door. Registeel requires the Iron Key to unlock the Iron Chamber (Japanese: 鉄の間 Iron Room), while Regice requires the Iceberg Key to unlock the Iceberg Chamber (Japanese: 氷山の間 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. A key can be used by selecting Unova Link followed by Key System after the title screen.



Item Location Games
  Fire Gem Dust cloud  B2  W2 
  Water Gem Dust cloud  B2  W2 
  Electric Gem Dust cloud  B2  W2 
  Grass Gem Dust cloud  B2  W2 
  Ice Gem Dust cloud  B2  W2 
  Fighting Gem Dust cloud  B2  W2 
  Poison Gem Dust cloud  B2  W2 
  Ground Gem Dust cloud  B2  W2 
  Flying Gem Dust cloud  B2  W2 
  Psychic Gem Dust cloud  B2  W2 
  Bug Gem Dust cloud  B2  W2 
  Rock Gem Dust cloud  B2  W2 
  Ghost Gem Dust cloud  B2  W2 
  Dragon Gem Dust cloud  B2  W2 
  Dark Gem Dust cloud  B2  W2 
  Steel Gem Dust cloud  B2  W2 
  Normal Gem Dust cloud  B2  W2 
  Fire Stone Dust cloud  B2  W2 
  Water Stone Dust cloud  B2  W2 
  Thunderstone Dust cloud  B2  W2 
  Leaf Stone Dust cloud  B2  W2 
  Moon Stone Dust cloud  B2  W2 
  Sun Stone Dust cloud  B2  W2 
  Shiny Stone Dust cloud  B2  W2 
  Dusk Stone Dust cloud  B2  W2 
  Dawn Stone Dust cloud  B2  W2 
  Oval Stone Dust cloud  B2  W2 
  Everstone Dust cloud  B2  W2 


Underground Ruins

  • During the day
"Chamber of the one that joins the sun in protecting this place."
"Two answers are needed to find the true path. Courageous one, let me tell you the answer I know. Check the ground six steps down and ● steps right of the eyeball. The other answer can only be found when the moon is in the sky."
"The world is split into two: day and night...black and white..."
"The protectors were born out of rock, ice, and magma..."
  • During the night
"Chamber of the one that joins the moon in protecting this place.
"Two answers are needed to find the true path. Courageous one, let me tell you the answer I know. Check the ground nine steps right and ● steps down from the eyeball. The other answer can only be found when the sun is in the sky."
"The world is split into two: day and night...black and white..."
"The protectors were born out of rock, ice, and magma..."

Rock Peak Chamber

"Rock Peak Chamber"
"It protects this place with the power of rock."

Iceberg Chamber

"Iceberg Chamber"
"It protects this place with the power of ice."

Iron Chamber

"Iron Chamber"
"It protects this place with the power of steel."


Pokémon Games Location Levels Rate
B2 W2
57 5%
B2 W2
55, 57 15%
B2 W2
55, 57 15%
B2 W2
54-55 35%
B2 W2
54 10%
B2 W2
54 20%
Dust clouds
B2 W2
  Dust cloud
54 20%
B2 W2
  Dust cloud
54-57 75%
B2 W2
  Dust cloud
57 5%
Special Pokémon
B2 W2
  Only one
65 One
B2 W2
  Only one
65 One
B2 W2
  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 article is incomplete.
Please feel free to edit this article to add missing information and complete it.
Reason: AM map of Underground Ruins 2

Version Underground Ruins 1 Underground Ruins 2 AM Underground Ruins 2 PM
Black 2    
White 2

Version Rock Peak Chamber Iceberg Chamber Iron Chamber
Black 2      
White 2


  • This location is based on the Sealed Chamber in Hoenn, and the music is a remix of that location's music.
  • At the northern part of the chamber, there are rock formations based on the dot patterns seen on Regirock, Regice, and Registeel.
    • All three dot patterns are present at once if a clue is available, but only the dot pattern for the legendary giant found in the current chamber can be seen in the chambers that contain the legendary giants.
  • The three chambers share their names with the category names of the legendary giants, as well as three ruins in which they are encounterable in Pokémon Platinum: the Rock Peak Ruins, the Iceberg Ruins, and the Iron Ruins.

In other languages

Language Title
Chinese Cantonese 地底遺跡 Deihdái Wàihjīk
Mandarin 地底遺跡 / 地底遗迹 Dìdǐ Yíjī / Dìdǐ Yíjì
  Danish Undergrundsruinerne
  French Ruines Enfouies
  German Unterirdische Ruine
  Italian Rovine Sotterranee
  Korean 땅밑유적 Ttangmit Yujeok
  Spanish Ruinas Subterráneas
  Swedish De underjordiska ruinerna

Rock Peak Chamber

Language Title
Chinese Cantonese 岩山之室 Ngàahmsāan jī Sāt
Mandarin 岩山之室 Yánshān zhī Shì
  French Salle Pic Rocheux
  German Steingipfelkammer
  Italian Sala Picco
  Korean 바위산의 방 Bawisan-ui Bang
  Spanish Sala Pico Roca

Iceberg Chamber

Language Title
Chinese Cantonese 冰山之室 Bīngsāan jī Sāt
Mandarin 冰山之室 Bīngshān zhī Shì
  French Salle Iceberg
  German Eisbergkammer
  Italian Sala Iceberg
  Korean 빙산의 방 Bingsan-ui Bang
  Spanish Sala Iceberg

Iron Chamber

Language Title
Chinese Cantonese 黑金之室 Hākgām jī Sāt
Mandarin 黑金之室 Hēijīn zhī Shì
  French Salle Fer
  German Eisenkammer
  Italian Sala Ferro
  Korean 쇠철의 방 Soecheor-ui Bang
  Spanish Sala Hierro

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 Cave
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 Temple
Stark MountainNewmoon IslandFlower ParadiseHall of Origin
Ramanas ParkFloaroma TownRoaming Pokémon
Unova Guidance ChamberTrial ChamberRumination FieldN's CastleAbundant Shrine
Giant ChasmDragonspiral TowerLiberty GardenRoute 11Route 13Route 22
Route 23Celestial TowerNacrene CityUnderground RuinsTwist Mountain
DreamyardMarvelous BridgeReversal MountainCoastal BiomeRoaming 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
Aether ParadiseAncient Poni PathLake of the SunneLake of the Moone
Ten Carat HillResolution Cave
Galar Tower summitBattle TowerMaster DojoCrown ShrineMax Lair
Rock Peak RuinsIceberg RuinsIron RuinsSplit-Decision RuinsGiant's Bed
Frigid SeaLakeside CaveBallimere LakeFreezingtonRoaming Pokémon
Hisui Seaside HollowTemple of SinnohAcuity CavernValor CavernVerity Cavern
Lava Dome SanctumMoonview ArenaSnowpoint TempleTurnback CaveBonechill Wastes
Cobalt CoastlandsRamanas IslandScarlet BogCoronet HighlandsFloaro Gardens
Paldea Grasswither ShrineIcerend ShrineGroundblight ShrineFirescourge Shrine
Poco PathArea ZeroArea Zero UnderdepthsGlaseado Mountain
South Province (Area One)Asado DesertWest Province (Area One)East Province (Area Three)
Casseroya LakeNorth Paldean SeaSouth Province (Area Four)North Province (Area Two)
Alfornada CavernGreat Crater of PaldeaTagtree ThicketEast Province (Area One)
South Province (Area Five)Dalizapa PassagePokémon LeagueSocarrat Trail
Kitakami Paradise BarrensWistful FieldsOni MountainDreaded DenLoyalty Plaza
Other Faraway IslandDistortion WorldSinjoh RuinsUltra Space Wilds

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
Blueberry AcademyTerarium

  This article is part of Project Locations, a Bulbapedia project that aims to write comprehensive articles on every location in the Pokémon world.