Dayugou Valley Forest Eco-tourism Area is located in Dayu Valley, Muer Village, Zhuoni County of Gansu Province, 30 kilometers away from the county. It covers an area of 105214.6 hectare. Surrounded by rippling Taohe River and the dense forest belt, Zhuoni County lies in the gorgeous scenery.

Therefore, Zhuoni County is famous for the natural pageantry and Dayu Valley Scenic Area is especially attractive with the endowed magnificent landform. Brooks and springs flow freely in Dayu Valley, eventually come together into Dayuhe River, with voluminous water flow throughout the year. The winding river is crystal clear and sweet. The altitude of Zhayikega, the main peak of Dieshan Mountain in the Dayu Valley is 4920 meters and the altitude of the valley is 2500 meters. The relative height difference reaches 2400 meters. The vertical distribution of plants in the area is prominently different. Standing on the foot of Dieshan Mountain, tourists can see the bare rock lying above the snow line, then downward the alpine pasture, virgin forest, low mountain meadow, shrubs and crops.

There are nine gullies in Dayu Valley: Sangbu Gully, Ajiao Small Gully, Ajiao Big Gully, Yanmai Gully, Zhayata Gully, Bashi Gully, Niezuo Gully, distributed in southeast of Dayu Valley. The nine gullies form a huge opened fan, on which a magic landscape in various colors is painted.