SOS Encounter: Route 3, Kala’e Bay
Walk: Kala’e Bay (10%), Route 3 (1%)
Its base catch rate is 45 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 Heavy Ball, Moon Ball or Quick Ball.
Evolution: Bagon → Shelgon (Level 30) → Salamence (Level 50).
Bagon in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)