The area of Yasuj had been settled as early as theBronze Age. Findings include the Martyrs Hills (dating from 3rd millennium BC), the Khosravi Hill from theAchaemenian period, the ancient site of Gerd, the Pataveh bridge, and the Pay-e Chol cemetery. Yasuj is the place whereAlexander III of Macedon and hisMacedonian forces stormed thePersian Gates (Darvazeh-ye Fars), and found a way into thePersian heartland (331 BC).[8]
The Yasuj Museum, which opened in 2002, displays coins, statues, pottery, and bronze vessels recovered from surrounding archaeological sites.[9]
At the time of the 2006 national census, the city's population was 96,786 in 20,297 households.[11] The following census in 2011 counted 108,505 people in 26,304 households.[12] The 2016 census measured the population of the city as 134,532 people in 34,850 households.[3]
The population of the Central District, in 2016, which includes the city of Yasuj and some suburban villages, is just over 250,000 people.[3]
Yasuj has the typical continental-influencedMediterranean climate (KöppenCsa) of western Iran, though because of its location in the direct line of rain-bearing winds from the Persian Gulf it is the wettest Iranian city south of the Alborz Mountains with an annual rainfall nine times that ofIsfahan and twice that ofKermanshah. The heavy precipitation allows the existence of smallglaciers on the highest Zagros peaks – in contrast the Kuhrud Mountains to the east have no glaciers despite being of the same height due to aridity. The long dry season sees only on average 4 millimetres (0.16 in) of rainfall between June and September, with the wet season extending into October, unlike many other Mediterranean climates.
Climate data for Yasouj (1991-2020, extremes 1987-2020)
By 2014 a new refinery will be constructed by the private sector, at a cost of $2.2 billion. It will produce petrol, gasoil, kerosene, furnace oil, liquefied gas, asphalt, and sulfur.[15]
^Yasuj can be found atGEOnet Names Server, atthis link, by opening the Advanced Search box, entering "-3198290" in the "Unique Feature Id" form, and clicking on "Search Database".
^Loeffler, Reinhold L. (1976). "Recent Economic Changes in Boir Ahmad: Regional Growth without Development".Iranian Studies.9 (4):266–287, 269.doi:10.1080/00210867608701519.
^Henry Speck, "Alexander at the Persian Gates. A Study in Historiography and Topography" in:American Journal of Ancient History n.s. 1.1 (2002) 15-234; summarized at"Persian Gates"Archived 18 April 2009 at theWayback Machine
^World Health Organization (2000)World Directory of Medical Schools: Répertoire mondial des écoles de médecine World Health Organization, Geneva, p. 199,ISBN978-92-4-150010-4