This is the earliest example of cattle sacrifice. The botanical remains include a large accumulation of carbonized millet. In 1996 the pounded earth wall of East Zhou pre-Shang materials were found under the wall. The paleosurface was found 10-11 meters deep, by using the coring technology. Archaeologists also used ground penetrating radar.
Local folks think the archaeologists are looking for gold.
In the Yellow River basin it s hard to see where to dig because sites are deeply buried, but in the Ying potter can be seen everywhere, and there are lots of sites. Since the 1950s lots of work has been done but not systematically. There are many sites, dating from 6000 bc to Erlitou or later long occupations. Texts say that Xia, Shang and Zhou all originate from the same earlier Longshan from different lineages or clans, from egalitarian to complex civilizations. In some areas, Longshan might be directly ancestral.