SOS Encounter: Ancient Poni Path, Poni Gauntlet, Poni Grove (Only in Sun & Moon) + 1 more
Walk: Ancient Poni Path (20%), Poni Gauntlet (20%), Poni Grove (20%, Only in Sun & Moon) + 1 more
Its base catch rate is 75 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 Dream Ball, Love Ball or Heal Ball.
Evolution: Snubbull → Granbull (Level 23).
Granbull in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)