![](http://www.ecns.cn/hd/2022/09/05/5abb5f5732ee429aae90d04ebc48402f.jpg)
Photo taken on Aug. 23, 2022 shows a clay pot discovered at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
Based on the unearthed artifacts, the Nanzuo site belongs to the late period of the Yangshao Culture, dating back to 5,000 to 7,000 across north China.
![](http://www.ecns.cn/hd/2022/09/05/e7fb5f859a4f4a1985b3149073693862.jpg)
Photo taken on Aug. 23, 2022 shows carbonized rice remains unearthed at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
![](http://www.ecns.cn/hd/2022/09/05/51368b1a45804b31ac569f032242018f.jpg)
Photo taken on Aug. 23, 2022 shows a clay bottle discovered at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
![](http://www.ecns.cn/hd/2022/09/05/77153814053b4f21a51a1457bbeaa3ba.jpg)
Archeologists work at the discovery site of Nanzuo heritage site in Qingyang city, northwest China's Gansu Province, Aug. 23, 2022. (Photo: China News Service/Sun Zifa)
![](http://www.ecns.cn/hd/2022/09/05/75160032d56e42b68976d61f70871000.jpg)
Photo shows the archeological site of Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)