Tongjiang County belongs to Sichuan Province. According to the query Tongjiang County People's Government's "Natural Geography" that Tongjiang County is located in the northeast of Bazhong City, Sichuan Province, the eastern section of the Micang Mountains, the southern foothills of the Dabashan notch, residing in the north latitude of 31 ° 39 '~ 32 ° 34', longitude 106 ° 59 '~ 107 ° 45'. It is connected with Wanyuan City in the east, Pingchang County in the south, Bazhou and Nanjiang two districts and counties in the west, and Nanzheng, Xixiang and Zhenba three districts and counties in Shaanxi Province in the north. Tongjiang is not only an old revolutionary area and ecological city, but also a provincial-level historical and cultural city. According to the inquiry of the people's government of Tongjiang County, "Tongjiang fungus" that Sichuan Tongjiang is the birthplace of China's fungus, from the Sheng Tang as of March 20, 2024 has been more than 1,000 years of history, known as the "hometown of China's fungus" reputation. Bazhong is the center of the Ba culture core heritage area of the Daba Mountain, the Cuban State and Ba culture.