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

Johto Route 41 - Bulbapedia, the community-driven Pokémon encyclopedia

Route 43 (Johto) – PokéWiki

File:Johto Route 44 GSC.png - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon HeartGold and SoulSilver Versions - Bulbapedia, the community-driven Pokémon encyclopedia

Johto Route 32 - Bulbapedia, the community-driven Pokémon encyclopedia

Who is the strongest female companion of Ash Ketchum (only those who traveled with Ash)? - Quora

Johto Route 33 - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon: Johto League Champions - Wikipedia

Johto Route 39 - Bulbapedia, the community-driven Pokémon encyclopedia

Lake of Rage - Bulbapedia, the community-driven Pokémon encyclopedia

Johto Route 40 - Bulbapedia, the community-driven Pokémon encyclopedia

Olivine City, Pokémon Wiki

Johto Region by Tracey West, Ash Ketchum, Pokemon Detective (Pokemon: Super Special Flip Book #4), 9781338746563

A tale of three Johtos: the evolution of the Gen II maps, PokéCommunity Daily