Dena
Sub-range within the Zagros Mountains in Iran
Dena (in Luri and Persian: دنا) is the name of a sub-range within the Zagros Mountains, Iran. Mount Dena, with 80 km (50 miles) length and 15 km (9.3 miles) average width, is situated on the boundary of the Isfahan, Kohgiluyeh and Boyer-Ahmad and Chaharmahal and Bakhtiari Provinces of Iran.
Mount Dena has more than 40 peaks higher than 4,000 metres (13,000 feet). Annual precipitation in Mount Dena ranges from 600 to 1,800 mm (24 to 71 in).
Geologically, Mount Dena is located in the Sanandaj-Sirjan geologic and structural zone of Iran and is mainly made of Cretaceous limestone.
01Iran Aseman Airlines Flight 3704 Accident
On 18 February 2018, Iran Aseman Airlines Flight 3704, operating a scheduled domestic passenger flight, crashed into Mount Dena while en route from Tehran to Yasuj. The aircraft, an ATR 72-212, was carrying 60 passengers and 6 crew members; all on board perished in the accident. The crash occurred in foggy and mountainous terrain, posing challenges for rescue teams.
The incident drew significant media attention and prompted discussions about aviation safety in Iran. Recovery efforts were hampered by severe weather conditions and the remote location of the crash site on the slopes of Mount Dena.


Sources and credits
This article is adapted from the Wikipedia article “Dena”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Dena Mountain-Iran-Mar2012.JPG by Eh kia, CC BY-SA 3.0
- Iran-geographic map.svg by Ikonact, CC BY-SA 4.0
- Dena1.jpg by Vah.hem, CC BY-SA 3.0
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