Snow-trolls

Snow-trolls may have been a subspecies of troll in Middle-earth.
== History ==
Snow-trolls are mentioned only once in Tolkien's works, in reference to Helm Hammerhand stalking his enemies "like a snow-troll" during his sorties against the Dunlendings in the Long Winter. The trolls who lived in the Coldfells in western Eriador may have been similar to these.
Galadriel and her companions are attacked by a snow-troll while exploring an abandoned fortress of Morgoth in the wastes of Forodwaith. The creature injures several of the Elves before Galadriel slays it.