Mountain Trolls could be found in the mountains of Middle-earth. Their type helped move the great battering ram Grond into place during the Battle of the Pelennor Fields, which they wielded and shattered the large gates of Minas Tirith. Members of the species also were seen opening the gates of the Morannon.
Mountain-trolls were very large, larger than Hill-trolls and had brownish skin.
The mountain-trolls make dangerous opponents in battle. The trolls are smarter than Cave-trolls, and their power to lift massive objects to use as a weapon makes them deadly. It is assumed to be strong enough for other heavy tasks as well.
Portrayal in adaptationsEdit
Mountain-trolls are featured in The Lord of the Rings: The Battle for Middle-earth II. They can rip trees out of the ground and wield trees and rocks, and are able to sustain more damage than Cave-trolls.
Middle-earth Role PlayingEdit
In Middle-earth Role Playing, they are violent and vicious and hurl rocks at enemies.
Middle-earth Collectible Card GameEdit
In the Middle-earth Collectible Card Game, Mountain-trolls are referred to as "Trolls from the Mountains" and can inflict three strikes on a player's character.