Dena
mountain range 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.
Iran 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.
Begin with the source’s own compact description: “Dena” is mountain range in Iran. The dossier treats that line as a proposition to test through Dena, mountain and range, not as a finished interpretation.
Why this record matters
The phrase “mountain range in Iran” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q3143042. Authority coordinates are 30.952, 51.438. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2018.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Dena”, its source revision and the description used here.
- Expand the search: follow Dena primary sources, Dena archive and Dena research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “Dena” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.