Zard-Kuh is a sub-range in the central Zagros Mountains, Iran. With an elevation of 4,221 metres, its highest peak "Kolonchin" is located in the Kuhrang County, in the Chaharmahal and Bakhtiari Province of Iran. The Karun and also Zayanderud rivers originate 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.