The 650-kilometre mountain range that locals once called Cursed by God

Countries & Cities · Published 30 September 2026 Swipe more like this →

In short: Stretching along the border of Turkmenistan and Iran, the Kopet Dag is a formidable geological barrier formed by the collision of tectonic plates. While its name is often debated by scholars, the range has long been feared for its treacherous winds, extreme cold, and history of severe, powerful earthquakes.

The Kopet Dag, or Turkmen–Khorasan Mountain Range, spans approximately 650 kilometres between the Caspian Sea and the Hari River. Geologically, it is a product of the Alpine orogeny, emerging during the Miocene and Pliocene epochs. The range formed as the Arabian plate collided with the Iranian plate, which was subsequently pressed against the Turan Platform. This massive tectonic activity folded sedimentary rocks—primarily from the Lower Cretaceous period—into the steep ravines, plateaus, and sandy slopes seen today. The region remains tectonically active, with recorded earthquakes exceeding seven on the Richter scale.

The etymology of the name remains a subject of intense academic disagreement. While some early conjectures linked the name to the Turkmen word for 'many' or the Persian word for 'heap,' suggesting a meaning of 'many mountains' or 'piled hills,' local traditions offer a darker perspective. Historically, sections of the range were known as Taňrygargan, meaning 'Cursed by God,' while Persians referred to it as a 'bad mountain' due to the lethal combination of cold and wind that made crossing it dangerous. The modern name was only applied to the entire range by Russian scholars in the late 19th century.

Despite its arid climate, the Kopet Dag has supported human activity for millennia. Neolithic settlements, such as the mud-brick houses at Jeitun, date back to approximately 6000 BC. The foothills also house the ruins of the ancient Parthian city of Nisa. Today, the range is recognized for its rich biodiversity, serving as a natural reservoir for wild ancestors of modern crops, including pomegranate, fig, almond, and various wild cherries and apples. Even in the face of environmental challenges, such as the scarcity of snow, the region has seen modern interventions, including the construction of a ski resort initiated by former Turkmen president Saparmurat Niyazov.

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