With a total length of 34.8 kilometers, it is dominated by snow peaks, pastures, grasslands, forests, etc. It is the most beautiful ditch in Siguniang Mountain. There are two wooden bridges in the ditch. One is made of poplar and willow wood and the other is made of red cedar. Shuangqiaogou gets its name. ·The scenic area is divided into three sections, the front section is Yinyang Valley, Wuse Mountain, etc.; the middle section is the Huyu Dam, seabuckthorn forest, etc.; the rear section is the Niu Pengzi Lawn and Longhe Beach, etc. How to Get to Siguniang Mountain - Changping Valley? 1) Shuttle bus; 2)Self-driving