Pokéarth - Johto - Route 46

Pokémon Gold & Silver vs. Pokémon HeartGold & SoulSilver: Full Comparison - Cheat Code Central

Pokémon HeartGold & SoulSilver

Kanto Route 28 - Bulbapedia, the community-driven Pokémon encyclopedia

Johto Route 43 - Bulbapedia, the community-driven Pokémon encyclopedia

Johto Route 37 - Bulbapedia, the community-driven Pokémon encyclopedia

Stream Route 26 Piano - Pokemon Heart Gold & Soul Silver by relink

Route 29, Johto Odyssey

3 Ways to Capture All Three Legendary Dogs in Pokémon SoulSilver and HeartGold

Kanto Route 26 - Bulbapedia, the community-driven Pokémon encyclopedia

Most common Hall of Famers in Pokemon HeartGold and SoulSilver : r/nuzlocke