Where to find Dodrio in HeartGold & SoulSilver

• Blackthorn City — Trade
• Johto Safari Zone — Trade
• Mt. Silver — Trade, Walk
• Route 26 — Trade, Walk
• Route 27 — Trade, Walk
• Route 28 — Trade, Walk

Dodrio in every game · Johto & Kanto interactive map

By game: Pokémon HeartGold map · Pokémon SoulSilver map