Introduction to Guzhai Gate: Qijiang is located at the junction of Chongqing and Guizhou, the border between the two provinces. In ancient times, there were many wars. Gujian Mountain has become a battleground for military strategists of all ages because of its dangerous location and favorable terrain that is easy to defend but difficult to attack. The ancient village gate is a product of the war, and now it has become the best cultural relic for tourists to climb and recall the past.