(map) Cracked Tusk Keep - A medium-sized fort located to the west of Falkreath. Volkihar Keep DG - A large fort far northwest of Solitude connected to Castle Volkihar which serves as the Volkihar vampire clan's home. (map) Volkihar Courtyard DG - The courtyard attached to Castle Volkihar and Volkihar Keep. (map) Castle Volkihar DG - A large fort on an island far northwest of Solitude, north-northwest of Northwatch Keep.
(map) Broken Tower Redoubt - A medium-sized fort occupied by Forsworn. (map) Bloodlet Throne - A small fort occupied by vampires, vampire thralls, and wolves. Ashfallow Citadel DB - An old Imperial fort, currently being used as a base of operations by the Morag Tong. This page lists all the military forts in Skyrim.