Pokemon SoulSilver HeartGold Map by Brittlebear on DeviantArt

Pokemon HeartGold and SoulSilver :: Special Pokemon Guide

Pokemon: Everything In The Johto Region Changed In HeartGold & SoulSilver

Pokémon HeartGold and SoulSilver/Route 31 — StrategyWiki

Johto Route 36 - Bulbapedia, the community-driven Pokémon encyclopedia

Pokemon HeartGold & SoulSilver - All Pseudo-Legendary Pokemon Locations

Route 26: Orchestral Arrangement ◓ Pokémon HeartGold & SoulSilver

Pokemon HeartGold and SoulSilver :: Game Maps

Pokéarth - Johto - Route 44

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

Pokéarth - Kanto - Route 3