Tien Shan, also Tian Shan, the sky mountains, is a high mountain range wich extends from southwest to northeast of Central Asia with its main area in the area of Kyrgyzstan and parts in Kazakstan, Uzbekistan, Tadshikistan and China: 2500 km long, to 400 km broad. The highest peaks ars Pik Pobeda 7.439 m over the sea level, Pik Lenin 7.139 m over the sea level and Chan Tengri 6995 m over the sea level. The Tian Shan is arranged into numerous mountain chains, which on the west flank fan-like apart-run and broad bays of the west Turkistan low country enclose, to the east they add again more closely and delelate themselves in the desert Gobi. Between them lowering fields, for examble the Issyk-Kul lowers with one of the most beautiful mountain lakes, and partly expanded high plateaus, to the Dsungary more steeply, to the Tarim gentle waste. The highest mountain parts recieved plentifully precipitation and ar locally strongly glaciered (Inyltschek glacier is about 60 km long). In the middle and lower altitudes exist mountain steppes and mountain deserts. There are also grow leaves and coniferous forests (Tian Shan spruce) In the Tian Shan the sources of Syrdarja river, Ili river and Tarim river.