Union Cave — HeartGold Generations

Every wild Pokémon here, by encounter method.

Union Cave lists 38 Pokémon across 31 encounter methods (grass (1f, morning / day), grass (1f, morning / day, hoenn sound), grass (1f, morning / day, sinnoh sound), grass (1f, night), and more), between level 4 and 40. Between them they cover 15 types: GroundRockWaterFightingFireBugGrassSteelDarkPsychicFairyGhostFlyingNormalPoison.

Union Cave in other guides

The same area in other ROM hacks on this site. Each one has its own encounter table.

The original game's table for this area:

Grass (1F, morning / day) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	6	20%
	Shellos	Water	6	20%
	Riolu	Fighting	6	10%
	Numel	FireGround	6	10%
	Dwebble	BugRock	5	20%
	Mienfoo rare	Fighting	4	5%
	Ferroseed rare	GrassSteel	4	5%
	Sawk rare	Fighting	6-7	5%
	Onix rare	RockGround	6-7	5%

Grass (1F, morning / day, Hoenn Sound) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	6	20%
	Shellos	Water	6	20%
	Absol	Dark	6	20%
	Makuhita	Fighting	5	20%
	Mienfoo rare	Fighting	4	5%
	Ferroseed rare	GrassSteel	4	5%
	Sawk rare	Fighting	6-7	5%
	Onix rare	RockGround	6-7	5%

Grass (1F, morning / day, Sinnoh Sound) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	6	20%
	Shellos	Water	6	20%
	Bronzor	SteelPsychic	6	20%
	Chingling	Psychic	5	20%
	Mienfoo rare	Fighting	4	5%
	Ferroseed rare	GrassSteel	4	5%
	Sawk rare	Fighting	6-7	5%
	Onix rare	RockGround	6-7	5%

Grass (1F, night) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	6	20%
	Carbink	RockFairy	6	20%
	Inkay	DarkPsychic	6	10%
	Drifloon	GhostFlying	6	10%
	Whismur	Normal	5	10%
	Paras	BugGrass	5	10%
	Cubone	Ground	4	10%
	Throh rare	Fighting	6-7	5%
	Scyther rare	BugFlying	6-7	5%

Grass (1F, night, Hoenn Sound) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	6	20%
	Carbink	RockFairy	6	20%
	Absol	Dark	6	20%
	Makuhita	Fighting	5	20%
	Cubone	Ground	4	10%
	Throh rare	Fighting	6-7	5%
	Scyther rare	BugFlying	6-7	5%

Grass (1F, night, Sinnoh Sound) Lv 4-7

1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	6	20%
	Carbink	RockFairy	6	20%
	Bronzor	SteelPsychic	6	20%
	Chingling	Psychic	5	20%
	Cubone	Ground	4	10%
	Throh rare	Fighting	6-7	5%
	Scyther rare	BugFlying	6-7	5%

Grass (1F, swarm) Lv 6

1F

	Pokémon	Types	Level
	Geodude	RockGround	6

Grass (B1F, morning / day) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	8	20%
	Shellos	Water	8	20%
	Riolu	Fighting	8	10%
	Numel	FireGround	8	10%
	Dwebble	BugRock	7	20%
	Mienfoo rare	Fighting	8	5%
	Ferroseed rare	GrassSteel	8	5%
	Sawk rare	Fighting	6-9	5%
	Onix rare	RockGround	6-9	5%

Grass (B1F, morning / day, Hoenn Sound) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	8	20%
	Shellos	Water	8	20%
	Absol	Dark	8	20%
	Makuhita	Fighting	7	20%
	Mienfoo rare	Fighting	8	5%
	Ferroseed rare	GrassSteel	8	5%
	Sawk rare	Fighting	6-9	5%
	Onix rare	RockGround	6-9	5%

Grass (B1F, morning / day, Sinnoh Sound) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Rhyhorn	GroundRock	8	20%
	Shellos	Water	8	20%
	Bronzor	SteelPsychic	8	20%
	Chingling	Psychic	7	20%
	Mienfoo rare	Fighting	8	5%
	Ferroseed rare	GrassSteel	8	5%
	Sawk rare	Fighting	6-9	5%
	Onix rare	RockGround	6-9	5%

Grass (B1F, night) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	8	20%
	Carbink	RockFairy	8	20%
	Inkay	DarkPsychic	8	10%
	Drifloon	GhostFlying	8	10%
	Whismur	Normal	7	10%
	Paras	BugGrass	7	10%
	Cubone	Ground	8	10%
	Throh rare	Fighting	6-9	5%
	Scyther rare	BugFlying	6-9	5%

Grass (B1F, night, Hoenn Sound) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	8	20%
	Carbink	RockFairy	8	20%
	Absol	Dark	8	20%
	Makuhita	Fighting	7	20%
	Cubone	Ground	8	10%
	Throh rare	Fighting	6-9	5%
	Scyther rare	BugFlying	6-9	5%

Grass (B1F, night, Sinnoh Sound) Lv 6-9

B1F

	Pokémon	Types	Level	Rate
	Impidimp	DarkFairy	8	20%
	Carbink	RockFairy	8	20%
	Bronzor	SteelPsychic	8	20%
	Chingling	Psychic	7	20%
	Cubone	Ground	8	10%
	Throh rare	Fighting	6-9	5%
	Scyther rare	BugFlying	6-9	5%

Grass (B1F, swarm) Lv 8

B1F

	Pokémon	Types	Level
	Geodude	RockGround	8

Grass (B2F) Lv 20-23

B2F

	Pokémon	Types	Level	Rate
	Zubat	PoisonFlying	22	30%
	Raticate	Normal	22	30%
	Golbat	PoisonFlying	22	20%
	Geodude	RockGround	21	10%
	Rattata rare	Normal	20	5%
	Onix rare	RockGround	23	5%

Grass (B2F, Hoenn Sound) Lv 20-23

B2F

	Pokémon	Types	Level	Rate
	Zubat	PoisonFlying	22	20%
	Raticate	Normal	22	20%
	Absol	Dark	22	20%
	Makuhita	Fighting	22	20%
	Geodude	RockGround	21	10%
	Rattata rare	Normal	20	5%
	Onix rare	RockGround	23	5%

Grass (B2F, Sinnoh Sound) Lv 20-23

B2F

	Pokémon	Types	Level	Rate
	Zubat	PoisonFlying	22	20%
	Raticate	Normal	22	20%
	Bronzor	SteelPsychic	22	20%
	Chingling	Psychic	22	20%
	Geodude	RockGround	21	10%
	Rattata rare	Normal	20	5%
	Onix rare	RockGround	23	5%

Grass (B2F, swarm) Lv 22

B2F

	Pokémon	Types	Level
	Zubat	PoisonFlying	22

Surf (1F) Lv 10-25

1F

	Pokémon	Types	Level	Rate
	Wooper	WaterGround	10-20	60%
	Quagsire	WaterGround	10-25	40%

Surf (1F, swarm) Lv 10-20

1F

	Pokémon	Types	Level
	Wooper	WaterGround	10-20

Surf (B2F) Lv 10-25

B2F

	Pokémon	Types	Level	Rate
	Tentacool	WaterPoison	10-20	60%
	Quagsire	WaterGround	15-25	30%
	Tentacruel	WaterPoison	15-25	10%

Surf (B2F, swarm) Lv 10-20

B2F

	Pokémon	Types	Level
	Tentacool	WaterPoison	10-20

Old Rod (1F) Lv 10

1F

	Pokémon	Types	Level	Rate
	Magikarp	Water	10	85%
	Goldeen	Water	10	15%

Old Rod (B2F) Lv 10

B2F

	Pokémon	Types	Level	Rate
	Magikarp	Water	10	85%
	Krabby	Water	10	15%

Good Rod (1F) Lv 20

1F

	Pokémon	Types	Level	Rate
	Magikarp	Water	20	40%
	Goldeen	Water	20	60%

Good Rod (1F, swarm) Lv 20

1F

	Pokémon	Types	Level
	Goldeen	Water	20

Good Rod (B2F) Lv 20

B2F

	Pokémon	Types	Level	Rate
	Magikarp	Water	20	40%
	Krabby	Water	20	50%
	Corsola	WaterRock	20	10%

Good Rod (B2F, swarm) Lv 20

B2F

	Pokémon	Types	Level
	Staryu	Water	20

Super Rod (1F) Lv 40

1F

	Pokémon	Types	Level	Rate
	Goldeen	Water	40	70%
	Magikarp	Water	40	20%
	Seaking	Water	40	10%

Super Rod (1F, swarm) Lv 40

1F

	Pokémon	Types	Level
	Magikarp	Water	40

Super Rod (B2F) Lv 40

B2F

	Pokémon	Types	Level	Rate
	Krabby	Water	40	60%
	Corsola	WaterRock	40	30%
	Kingler	Water	40	10%

Trainers here

12 fights here, in story order. ★ marks a gym leader or major battle.

Open in the interactive guide