Mt. Silver (mountainside) — Pokémon SoothingSilver
Every wild Pokémon here, by encounter method.
Mt. Silver (mountainside) lists 11 Pokémon across 4 encounter methods (grass, swarm, hoenn sound, sinnoh sound), between level 30 and 61.
Mt. Silver (mountainside) in other guides
The same area in other ROM hacks on this site. Each one has its own encounter table.
Opens up at 16 badges — Earth (Blue, Viridian).