云阳是三峡大坝淹没区第一文物大县。1993年隆冬时节,四川大学三峡考古队来到云阳。兵分三路:一路调查沿江汉墓及汉代“朐忍”县故址;一路顺江而下至故陵;一路逆长江支流汤溪河而上,再转澎溪河,重点调查汤溪河流域的云安盐场制盐遗址和澎溪河流域的李家坝、明月坝、高阳坝、明堂坝等遗址。这次调查的主要收获之一就是确认了明月坝遗址是唐代遗址。 Yunyang is the first cultural relics county inundated area of ​​the Three Gorges Dam. In the winter of 1993, the Three Gorges Archeology Team of Sichuan University came to Yunyang. Soldiers in three ways: all the way to investigate the Han tomb along the Han Dynasty and the Han Dynasty, “Xun Ren ” County site; all the way along the river and down to the mausoleum; all the way down the Yangtze River tributary of Tangxi River, then turn to Pengxi River, focusing on Tangxi Yun’an salt field salt basin sites and the Peng River basin Lijiaba, Mingyueba, Gaoyangba, Mingtangba and other sites. One of the main gains of this survey is to confirm that the Mingyueba site is a site of the Tang Dynasty.