Gates of Alexander
（重定向自Caspian Gates）
![The Darial Gorge before 1906.](/Images/godic/202501/03/Darielpass_19064902.jpg")
![Dhul-Qarnayn with the help of some jinn, building the Iron Wall to keep the barbarian Gog and Magog from civilized peoples. (16th century Persian miniature).](/Images/godic/202501/03/Iranischer_Meister_0014902.jpg")
![The Caspian Gates in Derbent, Russia are often identified with the Gates of Alexander](/Images/godic/202501/03/Derbent_wall4902.jpg")
The Gates of Alexander was a legendary barrier supposedly built by Alexander the Great in the Caucasus to keep the uncivilized barbarians of the north (typically associated with Gog and Magog) from invading the land to the south. The gates were a popular subject in medieval travel literature, starting with the Alexander Romance in a version from perhaps the 6th century. The wall has been frequently identified with the Caspian Gates of Derbent, Russia (see below) and with the Pass of Dariel or Darial.