イリ川
By the early 1970s, the Soviets had started to build some of their hydroelectric power stations in Eastern Kazakhstan, Kyrgyzstan and Tadjikistan as part of an overall development strategy. The waters of the Ili River and of Lake Balkhash are considered to be of a vital economic importance to Kazakhstan. The Ili river is dammed for hydroelectric power at Kaptchagayskoye, and the river waters are heavily diverted for agricultural irrigation and for industrial purposes.