The Heishuiguo ruins are located on the side of the national road 10 kilometers northwest of Zhangye City, with a history of thousands of years. Historically, the Hunnu people moved here, and the Xinjiang country was built here as the "Xiaoyue's country". The local people called it "Lao Ganzhou" or "Black Water Country". The Black Water Country was named for the Black River and also rose and fell due to the Black River. The location of the site is relatively biased. Follow the navigation to drive there. About one kilometer before the navigation location, the site sign and a fork road were found. It has been driven in 1-2 kilometers, that is, to reach a barren and quaint earth city remnants, and the old appearance of the small country ancient city is faintly visible. This place belongs to the undeveloped scenic spot. Original, suitable for self-driving, you need to pay attention to the sand environment around the site city wall, non-road vehicles should not be able to avoid falling into the sand.