Mountain tuskers are hadrosaurid ruminants related to gutar. These horse-sized browsing herbivores live in northeastern Borea in the mountains near the Yon region.

Mountain tuskers are somewhat larger and heavier than gutar, approximately the size of a woolly rhinoceros, with a pair of small, downward-curving tusks emerging from the sides of their mouths that they use to dig for tubers in the summer and dig through snow and ice for vegetation in the winter. They are covered with insulating down that is white in the winter and mossy brown in the summer.Never domesticated, they are known to be ill-tempered and dangerous in the wild.