Dawnstar Frost Troll Den is an unmarked location found in The Elder Scrolls V: Skyrim.
Location[]
The den is located west of Dawnstar. Follow the shoreline or take the main road north to Dawnstar, then head along the rough snow path northwest and around to a shoreline overhang. Face down (or sneak behind) a frost troll for a chest with a skill book on it.