It is 1,067 kilometres in length and runs southeast from Yining towards Ruoqiang.
It passes Yining (Kulja) and follows the natural trade route east along the upper valley of the Ili River.
It then enters the oasis country around Korla and Karashahr and then crosses the Tarim Basin along the old bed to the Tarim River to Ruoqiang (Charkilik) on the south side of the basin.
Another extension plan was announced in 2022, including new small purpose connection highways (601-701).
This People's Republic of China road-related article is a stub.