Only in Ultra Sun & Ultra Moon
SOS Encounter: Route 10
Surf: Route 10 (30%)
Looking for Forretress? It isn't found in the wild in this game — evolve Pineco (Level 31).
Its base catch rate is 190 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Net Ball.
Evolution: Pineco → Forretress (Level 31).
Pineco in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)