During the Long Winter of T.A. 2758 and 2759 lied upon the fields of Rohan, Helm Hammerhand clad himself in white and stalked the camps of the Dunlendings "like a snow-troll", and killed many with (seemingly) his bare hands. It remained a legend in Dunland, striking fear and hatred into any who heard it.
 Portrayal in adaptations
1982-97: Middle-earth Role Playing:
- Snow Trolls are large (10-12 ft tall), grey-white and rare creatures, who prey the northern regions of Middle-earth, They turn into pillars of icy slag, if exposed to the Sun.
- Snow Trolls are a playable unit in the Angmar faction, being one of the strongest units not only in the faction but also in the game. They are equipped with pickaxes, helmets and small shields. Snow trolls can be used also in the Create-a-hero section.
- A Snow-troll fought in the army of Skorgrím Dourhand during the Battle of Edhelion. He destroyed the city's gate and tried to kill Dorongúr Whitethorn and the player, but was slain himself by Elrond before he could complete his attempt.
- Snow-trolls are encountered on the slopes of Mount Gundabad. They are implied to be hostile, even to the various Orcs and Trolls gathering at the mountain.
- ↑ J.R.R. Tolkien, The Lord of the Rings, Appendix A, "The House of Eorl "
- ↑ R. Mark Colburn, Peter C. Fenlon, John D. Ruemmler, Terry K. Amthor, Jessica M. Ney (1989), Lords of Middle-earth Vol III: Hobbits, Dwarves, Ents, Orcs & Trolls (#8004)
- ↑ Randy Maxwell (1997), The Northern Waste (#2025)
- ↑ The Lord of the Rings Online, Introduction, Instance: The Refuge of Edhelion
|Legendary Races of Arda|
|Animals:||Dumbledors · Gorcrows · Hummerhorns · Pards · Swans of Gorbelgod · Turtle-fish|
|Dragon-kind:||Great glow-worms · Sea-serpents · Spark-dragons · Were-worms|
|Evil Races:||Giants · Gongs · Half-trolls · Hobgoblins · Ogres · Snow-trolls · Two-headed Trolls|
|Fairies:||Dryads · Mermaids · Sprites · Sylphs · White cow|
|Other:||Badger-folk · Great beasts · Lintips · Mewlips · Nameless Things · Spectres|
|Individuals:||The Hunter · Lonely Troll · Man in the Moon · The Rider · River-woman · Tarlang · Tim|