Mt. Mortar HGSS · Johto Area

Mt. Mortar is a huge, multi-level cave on Route 42 between Ecruteak City and Mahogany Town, with three entrances on the route. Most of it is optional, but it rewards thorough explorers with a pile of items and a meeting with the Karate King, Kiyo, who has been training deep inside. Fully exploring it takes several HMs, so it is best revisited later in the game.
- Region
- Johto
- Wild Pokémon
- 12
- Items
- 35
- Trainers
- 4
- HMs
- Surf, Strength, Waterfall, Rock Climb
Connects to: Route 42
Mt. Mortar on the Johto Pokégear map
Gift, legendary and roaming Pokémon
Tyrogue Lv. 10 · Gift · B1FBeat Kiyo the Black Belt deep inside Mt. Mortar (you need Surf, Strength and Waterfall to reach him) and he gives you Tyrogue.
Wild Pokémon
1F Entrance
| Pokémon | Type | Lv. | Morning | Day | Night |
|---|---|---|---|---|---|
Zubat | Poison | 13–15 | 60% | 60% | 60% |
Machop | Fighting | 14 | 20% | 20% | 20% |
Rattata | Normal | 14–16 | 14% | 14% | 14% |
Geodude | RockGround | 14 | 5% | 5% | 5% |
Marill | Water | 15 | 1% | 1% | 1% |
Marill Grass · 40%, Lv. 13–15Only on a day when Professor Oak’s Pokémon Talk on the radio (or a phone call) reports a swarm here.| Rod | Pokémon | Lv. | Chance |
|---|---|---|---|
| Old Rod | Magikarp | 10 | 85% |
Goldeen | 10 | 15% | |
| Good Rod | Goldeen | 20 | 60% |
Magikarp | 20 | 40% | |
| Super Rod | Goldeen | 40 | 70% |
Magikarp | 40 | 20% | |
Seaking | 40 | 10% |
1F Back
| Pokémon | Type | Lv. | Morning | Day | Night |
|---|---|---|---|---|---|
Geodude | RockGround | 13–15 | 50% | 50% | 50% |
Machop | Fighting | 13–15 | 35% | 35% | 35% |
Rattata | Normal | 14 | 10% | 10% | 10% |
Zubat | Poison | 14 | 5% | 5% | 5% |
2F
| Pokémon | Type | Lv. | Morning | Day | Night |
|---|---|---|---|---|---|
Machoke | Fighting | 32 | 30% | 30% | 30% |
Graveler | RockGround | 31 | 30% | 30% | 30% |
Geodude | RockGround | 31 | 20% | 20% | 20% |
Raticate | Normal | 30 | 10% | 10% | 10% |
Golbat | Poison | 30 | 5% | 5% | 5% |
Machop | Fighting | 28 | 5% | 5% | 5% |
| Rod | Pokémon | Lv. | Chance |
|---|---|---|---|
| Old Rod | Magikarp | 10 | 85% |
Goldeen | 10 | 15% | |
| Good Rod | Goldeen | 20 | 60% |
Magikarp | 20 | 40% | |
| Super Rod | Goldeen | 40 | 70% |
Magikarp | 40 | 20% | |
Seaking | 40 | 10% |
B1F
| Pokémon | Type | Lv. | Morning | Day | Night |
|---|---|---|---|---|---|
Zubat | Poison | 15–17 | 60% | 60% | 60% |
Rattata | Normal | 16 | 20% | 20% | 20% |
Machop | Fighting | 16 | 10% | 10% | 10% |
Raticate | Normal | 16 | 5% | 5% | 5% |
Geodude | RockGround | 16 | 5% | 5% | 5% |
| Rod | Pokémon | Lv. | Chance |
|---|---|---|---|
| Old Rod | Magikarp | 10 | 85% |
Goldeen | 10 | 15% | |
| Good Rod | Goldeen | 20 | 60% |
Magikarp | 20 | 40% | |
| Super Rod | Goldeen | 40 | 70% |
Magikarp | 40 | 20% | |
Seaking | 40 | 10% |
Chances are the game’s encounter slots: grass and caves 20/20/10/10/10/10/5/5/4/4/1/1, with every slot changing by time of day (morning 4:00–9:59, day 10:00–19:59, night 20:00–3:59); surfing 60/30/5/4/1; all three rods 40/30/15/10/5; Rock Smash 80/20; Headbutt 50/15/15/10/5/5. HG and SS mark Pokémon found in only one version. Where to find every Pokémon.
Trainers

| Trainer | Pokémon | Prize | Where |
|---|---|---|---|
| Poké ManiacHarrison | Nidoking 17 Nidoqueen 17 | ₽1,088 | 1F Back |
Super NerdMarkus | Slowpoke 19 | ₽912 | 1F Back |
Super NerdHugh | Seadra 39 | ₽1,872 | 2F |
Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s rate (doubled in double battles). Trainers who give you their Pokégear number call when they want a rematch, with stronger teams as you progress.
Items
| Item | How | Where |
|---|---|---|
| Ether | Item ball | 1F Entrance |
| Revive | Item ball | 1F Entrance |
| Hyper Potion | Hidden | 1F Entrance |
| Revive | Hidden | 1F Entrance |
| Escape Rope | Item ball | 1F Back |
| Nugget | Item ball | 1F Back |
| Iron Ball | Item ball | 1F Back |
| Max Potion | Item ball | 1F Back |
| Iron | Item ball | 1F Back |
| Max Revive | Item ball | 1F Back |
| Ultra Ball | Item ball | 1F Back |
| Full Incense | Item ball | 1F Back |
| Protector | Item ball | 1F Back |
| Max Repel | Hidden | 1F Back |
| Ether | Hidden | 1F Back |
| Rare Candy | Hidden | 1F Back |
| Ultra Ball | Hidden | 1F Back |
| Nugget | Hidden | 1F Back |
| Rare Candy | Item ball | 2F |
| Max Potion | Item ball | 2F |
| TM40 Aerial Ace | Item ball | 2F |
| Elixir | Item ball | 2F |
| Dragon Scale | Item ball | 2F |
| Escape Rope | Item ball | 2F |
| Full Restore | Hidden | 2F |
| HP Up | Hidden | 2F |
| Hyper Potion | Hidden | 2F |
| Full Heal | Hidden | 2F |
| Carbos | Item ball | B1F |
| PP Up | Item ball | B1F |
| Full Restore | Item ball | B1F |
| Max Ether | Item ball | B1F |
| Hyper Potion | Item ball | B1F |
| Max Revive | Hidden | B1F |
| Ultra Ball | Hidden | B1F |
Hidden items can be found with the Dowsing MCHN Pokégear app.
Tips
- Black Belt Kiyo waits on B1F with Hitmonlee and Hitmonchan at Lv34, and after you beat him he gives you a Lv10 Tyrogue.
- Reaching Kiyo takes Surf, Waterfall and Strength.
- Notable items include the Dragon Scale and TM40 Aerial Ace on 2F and the Protector, which needs Rock Climb.
- Unlike in Gold and Silver, the cave is already lit in HGSS, so you do not need Flash.
- Marill is a 1% find near the entrance, but a Marill mass outbreak makes it common.
- The upper floors have much stronger Pokémon, such as Lv32 Machoke and Lv31 Graveler.
Walkthrough: Part 10: Lake of Rage, Team Rocket HQ and Pryce · Part 13: The Kimono Girls and Ho-Oh or Lugia
More pictures
FAQ
How do you get Tyrogue in HeartGold and SoulSilver?
Find Black Belt Kiyo on B1F of Mt. Mortar and beat his Hitmonlee and Hitmonchan; he gives you a Lv10 Tyrogue.
What HMs do you need for Mt. Mortar?
Surf, Strength and Waterfall reach Kiyo and most of the cave, and Rock Climb is needed for several items such as the Protector.
Where is the Dragon Scale in HGSS?
On 2F of Mt. Mortar, east of the ladder down to the 1F back area.
Do you need Flash in Mt. Mortar?
No, the cave is lit in HeartGold and SoulSilver.
What Pokémon can you catch in Mt. Mortar in HeartGold and SoulSilver?
12 species: Zubat, Machop, Rattata, Geodude, Marill, Goldeen, Seaking, Magikarp, Machoke, Graveler, Raticate, Golbat.
Sources & picture credits
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances, items, trainers, rematch teams, gifts and shops come from the pret/pokeheartgold decompilation, and the Pokémon sprites and dungeon entrance pictures are drawn from the game’s own graphics in it. The position maps are the Gold/Silver wiki’s Pokégear map renders. Location pictures and trainer sprites © Nintendo / Creatures / GAME FREAK, archived from the Pokémon Wiki on Fandom (listed on the image gallery).
























