Located in the southeastern Ma'erkang City, Sichuan Province, Suomohe River Forest Park is a provincial forest park covering an area of 117822.3hectares. It was built in 2017, and was listed as one of the "Chinese forest oxygen bars" in 2019.

The late October to late November is the best time for Suomohe Valley. At that time, the red births, white births, and willows turn yellow; the pine trees, cypresses, and oak trees are green, and the mountains are mixed with red, yellow, black and green. The valley is like a fairy land.