It was originally found in the unova region (gen 5).
View Pokemon Yamask Galarian Evolution Pictures. There are currently a total of 2 pokémon in the yamask (galarian) family. Pokédex entry for #562 yamask containing stats, moves learned, evolution chain, location and more!
Pokemon Sword Shield How To Evolve Unova Yamask Into Cofagrigus Youtube from i.ytimg.com
The galarian form of yamask can only evolve into the new gen 8 pokémon in pokémon sword and shield. Take your yamask to wild area, and more precisely to the hammerlocke hills. You need to know your pokemon's exact level.
I just caught a level 33 galarian yamask and decided to evolve it right away.
Find out evolve conditions, locations, and more to evolve into runerigus! It evolves into runerigus when the player travels under the stone bridge in dusty bowl after yamask. Take galarian yamask for example, whose evolution requires something truly unique to the pokémon lore. Yamask has a galarian form in pokémon sword & shield, which evolves into runerigus.