Route 45

19 Pokémon can be caught at Route 45 in Johto — highlighted on the map below.

Also called Mountain Road, Route 45 descends through eastern Johto from Blackthorn City toward Route 46, and steep ledges make it strictly one-way southbound. An entrance to Dark Cave sits near its northern end, and the path repeatedly splits and rejoins through stretches of tall grass, with a small pond along the eastern branch. In HeartGold and SoulSilver a mountain river divides the route down its center, though it cannot be Surfed. Uniquely in Generation II, every fishing rod hooks level 10 Pokémon here.