Introduction to the first pass: The first pass of Liangshan is located in the valley of Xiaohuang Mountain and Yazuitan in Liangshan. It is the first barrier to enter Liangshan. The building of this pass is a wooden structure in the form of a fence, which has strong characteristics of a cottage. According to "Water Margin" Chapter 70 of "The Biography" describes that two leaders, Jie Zhen and Jie Bao, were stationed here. The fortification is tight and majestic. It was destroyed many times and was restored on the original site in 2002.