Tongmuguan, located at the junction of Fujian Province and Jiangxi Province, is a fault passage in Wuyi Mountain range at 1 1.6 km from Sangang to Huanggang Mountain Highway. The ancient Fujian-Jiangxi road runs through it, which is an ancient transportation and military place. It once built a wall to defend its soldiers, which is one of the eight passes of Wuyi Mountain. Looking to the north, the mountains on both sides are towering into the sky, and the V-shaped valley is like a sword, reaching straight to Lead Mountain County, Jiangxi Province.
Zhongshan Meadow, starting from the highway 26 kilometers from Sangang to Huanggang Peak, ends at both sides and around the top of the mountain. It is about 2 kilometers long from east to west and 10 kilometers long from north to south. Strong wind, high humidity, low temperature, long foggy days and abundant rainfall. Here, the hillside is gentle and beautiful, there are no rocks and thunder, the grass grows and the warblers fly, just like a green carpet covering the sky, which is endless and refreshing.
Meadow is composed of wild green grass, marsh grass, awn and wild ancient grass, and more than 20 kinds of mesophytes such as Compositae and Cyperaceae are scattered. There are several young shrubs in the community, such as Pinus taiwanensis, Phyllostachys pubescens and Acer negundo, which are crooked and strange in shape, similar to processed potted plants, but actually caused by high mountains and strong winds and have unique wooden characteristics.