During the Warring States Period, where was the Guanzhong of Qin in the end?

Guanzhong refers to the Weihe River alluvial plain at the northern foot of the Qinling Mountains in Shaanxi Province (around the Weihe River Basin), with an average elevation of about 500 meters, so it is called Weihe Plain and Guanzhong Plain. Its northern part is the Loess Plateau in northern Shaanxi, and its southern part is the southern Shaanxi basin and Qinba Mountain area. Shaanxi is an area with developed industry and agriculture, dense population and rich land, so it is known as "Qinchuan in 800 Li".

Baoji in the west, Tongguan in the east, Qinling in the south and Beishan in the Weihe River in the north. It is narrow in the west and wide in the east, about 300 kilometers long from east to west and about 400 meters above sea level. The terrain is high in the west and low in the east, with a drop of 340 meters at the riverbed of the Yellow River.