Jinchang is a prefecture-level city in the centre of Gansu province, People's Republic of China, bordering Inner Mongolia to the north. As of the 2020 Chinese census, its population was 438,026 inhabitants, of which 260,385 lived in the built-up area made up of the Jinchuan District.

The Lanzhou−Xinjiang railway or Lanxin railway, is the longest railway in Northwestern China. It runs 1904 kilometres from Lanzhou, Gansu, through the Hexi Corridor, to Ürümqi, in Xinjiang. It was Xinjiang's only rail link with the rest of China until the opening of the Lanzhou–Xinjiang high-speed railway in December 2014. The railway follows the path of the ancient Silk Road.