June 2022 10. According to official website information of Yili Municipal People's Government, the project is a high-standard flood control facility, which was completed in June 2023. Ili Kazakh Autonomous Prefecture, an autonomous prefecture of Xinjiang Uygur Autonomous Region, has a sub-provincial level. Ili Valley, located at the northern foot of Tianshan Mountain in the west of Xinjiang Uygur Autonomous Region, belongs to temperate continental climate and extremely cold climate, with a total area of 268,593 square kilometers.