Mount Cilo (Turkish: Cilo Dağı; Kurdish: Çiyayê Cîlo; Armenian: Ջողա լեռ) is the second highest mountain in Turkey after Greater Mount Ararat (Büyük Ağrı Dağı; 5,137 m (16,854 ft)).

It is 4,135 m (13,566 ft) high on its highest summit Reşko, also known as Gelyaşin or Uludoruk, and lies in the Hakkâri Dağları/Mountains, located in the East Taurus (Tr.

: "Doğu Toroslar"), in the district of Yüksekova of the Hakkâri Province in southeasternmost part of Turkey in East Anatolia region.

[1][2] The craggy massif Mount Cilo is 30 km (19 miles) long and builds the western part of the Hakkari Cilo-Sat Mountains National Park which was established in 2020.

[3] The mountains are characterized by an extremely rugged topography with high, pointed summits, sharp and jagged ridges, very steep or even occasionally vertical rock (primarily limestone) cliffs/walls and deep gorges and a few glaciers which are losing their volume and retreating since last decades due to global warming!