Zard-Kuh

Zard-Kuh (meaning "Yellow Mountain", also spelled Zardkuh, Zarduh Kuh or Zard Kuh-e Bakhtiari; Persian: زردكوه بختياري) is a sub-range in the central Zagros Range, Iran.
With an elevation of 4221 metres, the Zard-Kuh is located in the Zagros Mountains in the Chaharmahal and Bakhtiari Province of Iran. The Karun and also Zayanderud rivers start in the Zagros mountains near the Zard-Kuh. There are small glaciers on the mountain owing to the relatively high precipitation, which are the only glaciers in the subtropics outside the Himalayas, Andes and Trans-Mexican Volcanic Belt.
Geologically, the Zard-Kuh is situated in the Sanandaj-Sirjan geologic and structural zone of Iran and is mainly made of Cretaceous limestone.
The famous early documentary "Grass" captures on film the Bakhtiari tribe's crossing of Zard-Kuh barefoot in the snow with 50,000 people and 500,000 animals.