Dor-Lun was an Orc Fortress located in the Ered Luin. It was created in S.A. 3250 by Sauron and his orcs. Sauron promoted the Hobgoblin Darlung King of Dor-Lun. The forces of Dor-Lun attacked the free peoples several times, and caused damage to some kingdoms. When Sauron was defeated in the Battle of Gorgoroth, Darlung retreated to Dor-Lun and he and his orcs made an alliance with other evil creatures (Wargs, Spiders and Bats) that lived there. Later, the habitants of Dor-Lun stopped their attacks, Hobgoblin Garbunz then became the new chieftain.