The Yudu Mountain Natural Scenic Area is located in the deep mountains. Few people come here. The scenery is beautiful and the environment is quiet. It has the original green memories of nature. It is a little-known virgin land in the suburbs of Beijing. The mountains and rivers flow in the four seasons, and the scenery in spring, summer, autumn and winter is different. With the wind drifting, there are various gestures. The core attraction Yudu Mountain climbed to the top of the mountain and saw three straight pine trees on the opposite side of the mountain. They were lined up and people called them "San Muxiang".