![](http://www.ecns.cn/hd/2023/03/20/c00655f0153b4cb6a43a425fce1b1ad4.jpg)
Drone photo shows Xuewei No. 1 tomb of Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)
Xuewei No. 1, discovered in 1982, is the most complete and high standard tomb with clear structures, providing important evidence about Tuyuhun-tubo Period (6th to 8th centuries)
![](http://www.ecns.cn/hd/2023/03/20/c00de06ce7a044e79a32fe0cd95d2412.jpg)
Drone photo shows Xuewei No. 1 tomb of Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2023/03/20/be8ffd40a5cc4cb0895bb80f1de744a9.jpg)
Drone photo shows Xuewei No. 1 tomb of Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2023/03/20/6de157ad12994d74b8945b56def3a92d.jpg)
Drone photo shows the Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2023/03/20/e82a11cb56fc4b5f814fdc7af23fe0cb.jpg)
Drone photo shows Xuewei No. 1 tomb of Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)
![](http://www.ecns.cn/hd/2023/03/20/ff7c26aa55b647d3a2bd49ff40ee2ce0.jpg)
Drone photo shows the Reshui graveyard site at Dulan County, Haixi Mongolian Tibetan Autonomous Prefecture, northwest China's Qinghai Province, March 18, 2023. (Photo: China News Service/Ma Mingyan)