Flowing into Lake Balkhash , the Ili forms a large delta with vast wetland regions of lakes , marshes and vegetation .
The Ili River drains the basin between the Tian Shan and the Borohoro Mountains .
Flowing into Lake Balkhash , the Ili River forms a large delta with vast wetland regions of lakes , marshes and vegetation .
The Ili River drains the basin between the Tian Shan and the Borohoro Mountains .