Where to find Machop in HeartGold & SoulSilver

• Cliff Cave — Trade
• Johto Safari Zone — Trade, Walk
• Mt. Mortar — Trade, Walk
• Rock Tunnel — Trade, Walk
• Route 47 — Walk

Machop in every game · Johto & Kanto interactive map

By game: Pokémon HeartGold map · Pokémon SoulSilver map