Pokémon HeartGold and SoulSilver/Azalea Town — StrategyWiki

According to legends in the town, the yawn of a Slowpoke causes rain. 400 years ago, a drought in Azalea Town ended right when a Slowpoke yawned. This caused Slowpoke

Walkthrough:Pokémon HeartGold and SoulSilver (Part 4), Pokémon Wiki

Pokémon HeartGold and SoulSilver/Indigo Plateau — StrategyWiki

Pokemon HeartGold and SoulSilver :: Full Walkthrough

Azalea Town Headbutt Tree Map : r/pokemon

Walkthrough:Pokémon HeartGold and SoulSilver (Part 4), Pokémon Wiki

Pokémon HeartGold and SoulSilver/Nintendo Events — StrategyWiki

Azalea Town - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon HeartGold and SoulSilver/Nintendo Events — StrategyWiki

Goldenrod City, PokeMMO Wiki

Azalea Town - Pokémon HeartGold & SoulSilver