The Chuy Valley (Kyrgyz: Чүй өрөөнү, Çüy Örööü; Kazakh: Шу аңғары, Shý ańǵary; Russian: Чуйская долина) is a large valley located in north Tian-Shan. It extends from Boom Gorge in the east to Muyunkum Desert in the west. It has an area of about 32,000 square kilometres (12,000 sq mi), and borders Kyrgyz Ala-Too in the south, and Chu-Ili mountains in the north.