Article snapshot taken from[REDACTED] with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Wu Pass or Wuguan was one of four strategic mountain passes along the southern border of the ancient state of Qin and the north western border of Chu. Wuguan is a modern-day town in Danfeng County, Shaanxi Province.