The Sanxingdui Site Workstation of Sichuan Province Institute of Cultural Relics and Archaeology conducted two rounds of archaeological excavations on the northern section of Yueliangwan city wall,first between January 6 and May 28,1999,and then between November 12,1999 and May 20,2000,discovering pre-Qin period remains including a stretch of city wall,a moat,55 house foundations,51 ash ditches,97 ash pits,13 earth-pit tombs,42 pillar holes,through which the structure,age and nature of the Yueliangwan city wall and moat have been basically confirmed.The Yueliangwan city wall was built in the late stage of the second phase of Sanxingdui site,and abandoned around the fourth phase of the Sanxingdui site.The city wall was stacked up from outside to inside from 8 ramps.It is the first confirmed inner wall of the Sanxingdui site,indicating that the ancient city of Sanxingdui had multiple concentric circles.It forms the Yueliangwan small town together with the Zhenwugong city wall,Qingguanshan city wall,west city wall and its corner.The cultural layer sequence of this site is complete,providing rich and detailed information for the understanding of the cultural sequence and chronological staging of Sanxingdui site.
Sanxingdui siteYueliangwan city wallYueliangwan moat