Gates of Alexander

• The Gates of Alexander, also known as the Caspian Gates, is a Mountain Pass in the Caucasus.
• It refers either to the 8 mile (13km) Darial Gorge on the river Terek, or to the Pass of Derbent, a city in Russia which controls the most eastern Pass in the Caucasus. It is also linked to the Great Wall of Gorgan on the southeastern part of the Caspian Sea.

Darial Gorge, Georgia