Xichengyi culture
The Xichengyi culture was an ancient culture in the central Heihe River region of the Hexi Corridor, from 2,000 to 1,600 BCE. It is contemporary with the Qijia culture to its southeast. It succeeded the Majiayao culture in the area, and preceded the Siba culture.
Some of its important archaeological sites are Xichengyi, Ganggangwa, and Huoshiliang.
The Xichengyi culture practiced bronze smelting extensively, as seen by the quantity of slabs and furnace material. The copper ore was from the neighbouring Beishan Mountain.