Sludge Mound

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Sludge Mound ヘドロ台地
Sludge Plateau
"Wild Missingno. appeared!"
Sludge Mound LA.png
Map description:
Location: South Crimson Mirelands
Region: Hisui
Generations: VIII
Hisui Sludge Mound Map.png
Location of Sludge Mound in Hisui.
Pokémon world locations

Sludge Mound (Japanese: ヘドロ台地 Sludge Plateau) is an area located in the southern region of the Crimson Mirelands of Hisui. It is bordered by Gapejaw Bog to the west and Ursa's Ring to the east. It is also accessible from the Bogbound Camp to the north, when it is established as part of Request 31: "Setting Up the Bogbound Camp". Ursaluna, who is watched by warden Calaba of the Pearl Clan, is found here. He is fought here as part of Mission 8: "Arezu's Predicament", where the player gains access to it as a Ride Pokémon when he is rid of his frenzy.


The primary feature of the Sludge Mound is a massive, rounded plateau that has an appearance similar to a crater. It forms an arena-like space. The edge of the mound is riddled with dead tree trunks. It sits in a dense forest of dead trees and ore deposits.


050Diglett.png This section is incomplete.
Please feel free to edit this section to add missing information and complete it.
Item Location Games
Earth Plate LA Earth Plate Given by Ursaluna for defeating it  LA 
Old Verse LA Old Verse 9 Past the mound to the east, before the mountainous barrier (hidden, requires Ursaluna)  LA 


Pokémon Levels Alpha
Time of day Weather
Morning Day Evening Night Clear Cloudy Rain Thunderstorm Fog
Menu LA 074.png
21-24 36-39
25-28 40-43
Menu LA 092.png
21-24 36-39
Menu LA 093.png
25-28 40-43
21-24 36-39
Shaking ore deposits
21-24 36-39
27-30 42-45
Unown Research Notes
Non-fixed alpha Pokémon do not spawn until the player quelled the frenzy of the subregion's noble.
Some of the Pokémon marked with (‡) may only spawn near the area's borders.
  1. After visiting Solaceon Ruins and the Unown Research Notes are added to the Pokédex, in the end of a fallen tree trunk

Special encounters

The player has to defeat the Ursaluna that will serve as their Ride Pokémon, during Mission 8: "Arezu's Predicament".

Ground Normal
Ursaluna Lv.26
Normal Physical
Ground Physical
Baby-Doll Eyes
Fairy Status
Play Rough
Fairy Physical


In the Sludge Mound, the player can accept the following tasks:

  • Requests:
    • Request 31: "Setting Up the Bogbound Camp"

In other languages

Language Title
Chinese Cantonese 泥炭台地 Nàihtaan Tòihdeih
Mandarin 泥炭台地 Nítàn Táidì
France Flag.png French Plateau Tourbeux
Germany Flag.png German Schlammplateau
Italy Flag.png Italian Altopiano Melmoso
South Korea Flag.png Korean 진흙 대지 Jinheuk Daeji
Spain Flag.png Spanish Loma Lodosa

Kleavor stamp.png Lilligant stamp.png Arcanine stamp.png Electrode stamp.png Avalugg stamp.png
Jubilife VillageDiamond SettlementPearl SettlementAncient Retreat
Obsidian Fieldlands
Aspiration HillFloaro GardensHorseshoe PlainsGrueling GroveWorn BridgeDeertrack PathDeertrack Heights
Windswept RunNature's PantryTidewater DamThe HeartwoodGrandtree ArenaOreburrow TunnelObsidian Falls
Ramanas IslandSandgem FlatsLake Verity
Crimson Mirelands
Golden LowlandsGapejaw BogHolm of TrialsUrsa's RingSludge MoundScarlet BogSolaceon RuinsCloudpool Ridge
Shrouded RuinsDiamond HeathBolderoll SlopeCottonsedge PrairieDroning MeadowLake ValorBrava Arena
Cobalt Coastlands
Crossing SlopeGinkgo LandingAipom HillBathers' LagoonHideaway BayDeadwood HauntTombolo Walk
Sand's ReachTranquility CoveCastaway ShoreTidal PassageWindbreak StandSpring PathTurnback CaveIslespy Shore
Veilstone CapeLunker's LairSeagrass HavenSeaside HollowFirespit IslandMolten ArenaLava Dome Sanctum
Coronet Highlands
Heavenward LookoutWayward CaveWayward WoodAncient QuarrySonorous PathLonely SpringClamberclaw Cliffs
Celestica RuinsCelestica TrailPrimeval GrottoSacred PlazaStonetooth RowsBolderoll RavineFabled Spring
Moonview ArenaCloudcap PassStone PortalTemple of SinnohHall of Origin
Alabaster Icelands
Whiteout ValleyCrevasse PassageBonechill WastesHibernal CaveIcebound FallsAvalanche Slopes
Ice Column ChamberArena's ApproachAvalugg's LegacyIcepeak CavernSnowfall Hot SpringSecret Hollow
Glacier TerraceHeart's CragLake AcuitySnowpoint TempleIcepeak Arena
See also
SinnohMount CoronetSpace-time distortion

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