Mt. Moon FireRed & LeafGreen · Dungeon
Mt. Moon is the cave on the way from Route 3 to Route 4, with Zubat and Geodude in the tunnels and a team of Team Rocket Grunts in the lower floors. You usually arrive after beating Brock in Pewter City, and the area has a choice between two fossils.
- Wild Pokémon
- 4
- Items
- 20
- Trainers
- 12
Connects to: Route 4
Mt. Moon on the Kanto map
Wild Pokémon
1F
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
 Zubat | Poison | 7–10 | 69% | 69% |
 Geodude | RockGround | 7–9 | 25% | 25% |
 Paras | BugGrass | 8 | 5% | 5% |
 Clefairy | Normal | 8 | 1% | 1% |
B1 F
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
| Paras | BugGrass | 5–10 | 100% | 100% |
B2 F
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
| Zubat | Poison | 8–11 | 49% | 49% |
| Geodude | RockGround | 9–10 | 30% | 30% |
| Paras | BugGrass | 10–12 | 15% | 15% |
| Clefairy | Normal | 10–12 | 6% | 6% |
Chances are the game’s encounter slots for each version (grass 20/20/10/10/10/10/5/5/4/4/1/1, surfing and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, Super Rod 40/40/15/4/1). A dash means the Pokémon does not appear in that version here. Version exclusives · Where to find every Pokémon.
Trainers
| Trainer | Pokémon | Prize | Where |
|---|---|---|---|
 LassIris | Clefairy 14 | ₽224 | 1F |
 Bug CatcherRobby |  Caterpie 10 Metapod 10Caterpie 10 | ₽120 | 1F |
| Super NerdJovan |  Magnemite 11 Voltorb 11 | ₽264 | 1F |
| LassMiriam |  Oddish 11 Bellsprout 11 | ₽176 | 1F |
| Bug CatcherKent |  Weedle 11 Kakuna 11 | ₽132 | 1F |
 YoungsterJosh |  Rattata 10Rattata 10Zubat 10 | ₽160 | 1F |
 HikerMarcos | Geodude 10Geodude 10 Onix 10 | ₽360 | 1F |
 Team Rocket Grunt | Rattata 13 Sandshrew 13 | ₽416 | B2 F |
| Team Rocket Grunt | Rattata 13Zubat 13 | ₽416 | B2 F |
| Team Rocket Grunt | Zubat 11 Ekans 11 | ₽352 | B2 F |
| Team Rocket Grunt | Sandshrew 11Rattata 11Zubat 11 | ₽352 | B2 F |
Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s base rate (doubled in double battles). Use the VS Seeker to rematch trainers.
Items
| Item | How | Where |
|---|---|---|
| Parlyz Heal | Item ball | 1F |
| TM09 Bullet Seed | Item ball | 1F |
| Potion | Item ball | 1F |
| Rare Candy | Item ball | 1F |
| Escape Rope | Item ball | 1F |
| Moon Stone | Item ball | 1F |
| Tinymushroom | Hidden | B1 F |
| Tinymushroom | Hidden | B1 F |
| Tinymushroom | Hidden | B1 F |
| Big Mushroom | Hidden | B1 F |
| Big Mushroom | Hidden | B1 F |
| Big Mushroom | Hidden | B1 F |
| Star Piece | Item ball | B2 F |
| TM46 Thief | Item ball | B2 F |
| Revive | Item ball | B2 F |
| Antidote | Item ball | B2 F |
| Moon Stone | Hidden | B2 F |
| Ether | Hidden | B2 F |
| Dome Fossil | Gift | B2 F |
| Helix Fossil | Gift | B2 F |
Hidden items sparkle with the Itemfinder.
Tips
- Defeat Super Nerd Miguel on B2F and you can choose between the Dome Fossil and the Helix Fossil, which can be revived at the Cinnabar Island lab.
- Zubat is by far the most common wild Pokémon, so carry Repel; B1F has only Paras, and Clefairy is a rare find on 1F and B2F.
- There are two Moon Stones: one on the ground on 1F and one hidden on B2F, plus a Rare Candy on 1F.
- Four Team Rocket Grunts guard the lower level, so heal before you push on.
- Other items include TM09 Bullet Seed, TM46 Thief, a Star Piece, a Revive and hidden Tinymushrooms and Big Mushrooms on B1F.
Walkthrough: Part 3: Mt. Moon and Cerulean City
More maps
FAQ
Which fossil should I take in Mt. Moon?
You can only take one, the Dome Fossil or the Helix Fossil; both are revived at the Cinnabar Island lab, so pick the Pokémon you prefer.
Where are the Moon Stones in Mt. Moon?
One is on the ground on 1F and a second is hidden on B2F.
Can I catch Clefairy in Mt. Moon?
Yes, but it is rare, appearing on 1F and B2F in both versions.
What Pokémon can you catch in Mt. Moon in FireRed and LeafGreen?
4 species: Zubat, Geodude, Paras, Clefairy.
Sources & picture credits
- Mt. Moon (Bulbapedia)
- pret/pokefirered (decompiled game data)
- Map: Mt_Moon_1F_FRLG.png
- Map: Mt_Moon_B2F_FRLG.png
- Map: Mt_Moon_B1F_FRLG.png
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances for both versions, items, trainers, gifts, trades and shops come from the pret/pokefirered decompilation (pret/pokefirered 037335f4c7). Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives; the region maps are drawn from the game’s own map graphics (listed on the image gallery).