Tonggu Introduction: Tonggu County is a county included in Yichun City, Jiangxi Province. It is located in the northwestern border of Jiangxi Province, upstream of Xiuhe River, between 114°05' and 114°44'. It is connected to Yifeng County in the east, Wanzha County in the south, Liuyang County (city) and Pingjiang County in the west of Hunan Province, and Xiushui County in the north. The terrain is wide and narrow in the west and slightly triangular. 1548 square kilometers, of which 87% are mountainous, 13% are hilly basins, and 20 are above 1000 meters above sea level, which is a typical mountainous area. The county's forest coverage rate is as high as 87.4%. There are 4 state-owned forest farms in 6 towns and 3 townships. The county's 140,000, 70% of the Hakkas are the Hakka people's center in the northwest of Yunnan, passing through the Huaiyuan dialect (Hakka language bronze drums), Hakka culture is more concentrated.