Roodafshan Cave

The Roodafshan Cave, or Ghar-e Roodafshan, is a solutional cave located in Roodafshan valley, Damavand County, Tehran Province, Iran, in the Alborz mountains. Since 2003 the Verein für Höhlenkunde in Obersteier (Austria) with the Khaneye Koohnavardan-e-Tehran (Iran) has been surveying Roodafshan Cave.
The length of this spacious cave is 1,502 m with a vertical distance of -90.6 m. The Roodafshan Entrance Hall with 168 m length, 94 m width, 40 m high and 11,395 m2 floor area is the second biggest documented cave chamber in Iran.