Introduction to Zhengu Pass: Zhengu Pass is the only entrance to the core area of ​​Shimen Fairy Lake Scenic Area. It is the gate of Guangu inside the gate. There were more than a dozen guards guarding Shida when he opened the military overpass cave. The nearby villagers were in trouble at Qingliu Tuanzhai. At that time, there were also several group warriors who took turns to check in day and night. The wooden couplet hanging next to the gate of Zhengu is a couplet left by the American Chinese Dr. Pan Lisheng and his wife when they visited Shimen. This couplet vividly summarizes the ecological and natural landscape of Shimen Fairy Lake Scenic Area.