Igneus Depths is the extended area deep down the volcano Mt. Igneus. It is also the deepest part of the volcano, hence the name "Depths", and it consists of spirals going all the way down to the molten lava. A lava-fall can be clearly seen in the middle of these loops. This area includes a long path that leads to Legendary Pokémon Heatran. HM8 Rock Climb and Harvest Badge are required for the player to gain access to this area.

Notable Events

Catching Heatran

In the lowest level of Igneus Depths, Heatran can be found at the end of the long descending path. Once the player clicks on Heatran, it will give out a loud roar, and the battle will commence. Players only have one chance to catch it, so save beforehand and turn off the Autosave function. As Heatran is very hard to catch and shows up deep in a volcano, it is recommended to stock up on Dusk Balls in Poké Ball Emporium, Anthian City - Shopping District beforehand.


Wild Pokémon

Note: Rarity levels are estimations according to this scale and might be subject to changes due to different encounter assessment results.

Pokémon Type Image Rarity Items EV Yield
Walking Cave Lv. 25-27
Slugma XY
CommonNone1 Sp. Atk
Numel-M XY
Numel-F XY
UncommonNone1 Sp. Atk
Torkoal XY
UncommonCharcoal2 Def
Heatmor XY
RareNone2 Sp. Atk
Magmar XY
Very RareMagmarizer2 Sp. Atk
Click on the Pokémon names to check their learnsets on Bulbapedia. All Pokémon follow their movesets in Pokémon Sun and Moon. Hover on the item sprites to check the exact chance of being held by the Wild Pokémon. All information above only applies to the Normal Adventure Mode.

Roaming Pokémon are not listed in the table above. They are fixed at Lv. 40 and have a 0.1% chance of appearing anywhere in Roria with wild encounter methods specified here.

Set Encounter

VS Heatran

The long path for reaching Heatran.

Warning: Players can only battle the following Pokémon once! Save beforehand and turn off Autosave.

Pokémon Type Level Image Rarity Item EV Yield
Legendary Pokémon
Quick BallDusk BallTimer Ball
Lv. 40
Heatran XY
One OnlyNone3 Sp. Atk
If attempts of catching the above Pokémon failed, immediately leave the game and rejoin without saving, in order to secure a second chance.

Click on the Pokémon names to check their learnsets on Bulbapedia. All Pokémon above follow their movesets in Pokémon Sun and Moon. Hover on the item sprites to check the exact chance of being held by the Set Encounter Pokémon.


State Item Obtaining Location
Item Ball
MagmarizerOn the left side right before the long path to Heatran.
There was no change to the above items between any of the updates.


  • With 4 out of the 5 Wild Pokémon species giving Special Attack Effort Values, where the only Pokémon which gives other EVs is Torkoal, this is the best place to train the Special Attack stat of the player's Pokémon until player reaches Beach Bum Joe on Decca Beach.
Towns Mitis TownCheshma TownLagoona Lake (Trenches) • Port Decca (Beach) • Crescent TownHaunted Badge
Cities Silvent CityArc BadgeBrimber CityBrimstone BadgeRosecove CityFloat Badge (Beach) • Anthian City (Housing Dist.Shopping Dist.Battle Dist.Soaring BadgeParkSewer) • Aredia CityCrater Badge (Old ArediaAredia Ruins) • Fluoruma CityHarvest BadgeFrostveil CityContrast Badge (Catacombs)
Routes 123456789101112131415161718
Caves &
Glistening GrottoSteam ChamberMt. Igneus (Igneus Depths) • Path of TruthSilver CoveMt. Cragonos (MinesCliffsPeakSanctuarySpringChamber of the Jewel) • Desert CatacombsNature's DenCalcite ChamberMartensite ChamberDendrite ChamberTitans' ThrongFreezing FissureOcean's OriginAborille Outpost (Demon's Tomb)
Islands Crescent Island (TownAborille Outpost) • Lost Islands (Deep Jungle) • Voltridia Island (Cavern) • Frigidia Island (Cavern) • Obsidia Island (Cavern)
Gale ForestOld GraveyardSecret GroveGrove of DreamsFortulose ManorCosmeos Valley (Observatory) • Tinbell Tower (Construction Site) • Secret LabSafari ZoneEclipse BaseGene Lab
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