Tongchuan (simplified Chinese: 铜川; traditional Chinese: 銅川; pinyin: Tóngchuān; literally: "copper river") is a prefecture-level city located in central Shaanxi province, People's Republic of China on the southern fringe of the Loess Plateau that defines the northern half of the province (Shanbei) and the northern reaches of the Guanzhong Plain.
Population: 58,346
Latitude: 31° 05' 38.65" N
Longitude: 105° 05' 14.32" E
The Dadiwan culture (5800–5400 BC) was a Neolithic culture located primarily in modern eastern area of Gansu and Shaanxi provinces of China. The culture takes its name from the earliest layer found at the type site at Dadiwan. The remains of millet …