Pokéarth - Kanto - Route 14

How to Find Suicune in Pokémon HeartGold or SoulSilver: 8 Steps

Pokemon Heartgold/Soulsilver Edition – SSBM Textures

Johto Route 29 - Bulbapedia, the community-driven Pokémon encyclopedia

Route 29 - Pokemon World Online Wiki

Johto Route 38 - Bulbapedia, the community-driven Pokémon encyclopedia

Heart Gold Kingslocke: Episode 1 – Pokémaniacal

Pokéarth - Kanto - Route 3

Pokémon Red, Green & Blue vs. Pokémon HeartGold & SoulSilver: Full

Pokémon SoulSilver/HeartGold Cities Map Pokemon heart gold, Pokémon soulsilver, Pokemon

Here is a map I made with the location and info for all catchable Pokemon in X and Y. : r/pokemon