Qijiang.

Qijiang District sits at the southern edge of Chongqing, with Guizhou along its southern border. It was formed in 2011 by merging Qijiang County with Wansheng District, and it covers 2,747.8 square kilometres with 1.22 million people. The ground is mineral country: coal seams proven at 2 billion tonnes, pyrite, limestone and dolomite, and a geology that has also preserved an ornithopod-dominated dinosaur tracksite in the Lower Cretaceous Jiaguan Formation. The Sichuan-Guizhou Railway crosses it. In the south-central hills the old town of Dongxi keeps a county seat first set up in 619, and the salt road that once carried Sichuan salt south towards Guizhou still runs through its streets.