What city is silk trail in?

The ancient road originated from the historical capital of Chang'an (now Xian). This trade route ran through Gansu Province via Tianshui, Lanzhou, Wuwei, Zhangye, Jiuquan, Jiayuguan and Dunhuang along the Hexi Corridor. It was also a key point of the route, where the trade road divided into three main routes: the southern, central and northern routes. The three main routes spread all over the Xinjiang Uygur Autonomous Region.
The Southern Route wandered west along the northern foot of the Kunlun Mountains, passing Ruoqiang (Charkhlik), Qiemo (Cherchen), Hetian, Yecheng (Karghalik), Shache (Yarkand) and reached Kashgar (the last point of the Silk Road in China).
The Central Route ran west along the southern foot of Tianshan Mountains, passing Loulan (now Ruoqiang), Turpan , Korla, Kuche (Kuqa), Aksu and Kashgar, afterwards went over the freezing Pamirs, wound to Mashhad via the Fergana Basin, Samarkand, Bukhara and finally joined the Southern Route.
The Northern Route went west along the northern foot of Tianshan Mountains, taking merchants westwards to Hami (Kumul), Urumqi and Yining, and then reached the areas near the Black Sea, the Caspian Sea and the Mediterranean Sea.

Thank you sooo much Cindy this has helped me a lot. Thanks again.
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mostly in china