Tunxi District, belongs to Huangshan City, Anhui Province. It is the central urban area of Huangshan City, located in the upper reaches of the Xin'an River on the banks of the Gradual River, adjacent to Shexian County in the east, bordering Huining County in the west and south, and adjoining Huizhou District in the north, between latitude 29°39′34″-29°47′22″ north and longitude 118°11′15″-118°24′01″ east, with the jurisdiction of four streets and five towns. With a total area of 191 square kilometers, according to the seventh population census data, as of 00:00 on November 1, 2020, the resident population of Tunxi District was 291,188 people. Tuenxi District is located between the remaining veins of Huangshan Mountain and the remaining veins of Baiji, with beautiful mountains and beautiful environment, four distinct seasons and pleasant climate. Surrounded by more than two or three hundred meters above sea level in the hills, terrain around the high and low, was high in the northeast, southwest low trend; Central from west to east in turn for the Xintan Basin, Tunxi Basin and Shexian Basin local. Key cultural relics protection units are Dai Zhen Memorial Hall, Cheng Dawei's former residence and Memorial Hall, Cheng's three houses, the old bridge, etc., Tunxi Old Street for the national historical and cultural protection zone. Folk arts include papier-mâché fireworks, war drums, hanging lions, geomancy, pavilion-carrying, swing-turning, stilts, dragon boats, lion dances, dragon dances, and so on. In 2020, Tunxi District realized a GDP of 20.48 billion yuan, an increase of 3.0% over the previous year at comparable prices. By industry, the added value of the primary industry is 530 million yuan, an increase of 2.3%; the added value of the secondary industry is 5.87 billion yuan, an increase of 7.5%; and the added value of the tertiary industry is 14.08 billion yuan, an increase of 0.9%.