Walk: Mount Lanakila (30%), Route 14 (20%), Tapu Village (20%)
SOS Encounter: Mount Lanakila, Tapu Village
Looking for Froslass? It isn't found in the wild in this game — evolve Snorunt.
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 Level Ball, Ultra Ball or Repeat Ball.
Evolution: Snorunt → Glalie (Level 42) · Froslass.
Snorunt in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)