Polygon Township is a township under the jurisdiction of Chengkou County, Chongqing. Latitude 31 ° 48 ′ north, longitude 108 ° 38 ′, is located in the "eight hours of Chongqing" on the main road, 57 kilometers from the county. East of Mingzhong; south of Jiming; west of Mingtong, Zhouxi; north of Miaoba, Gao Yan, Zhiping townships (towns). By the end of 2010, the township covers an area of 151 square kilometers, with 12 villages, 94 villagers' groups, 3038 households and 11871 people, of which the agricultural population is 11,538, accounting for 97.19% of the total population. There are 11 schools (including 2 central elementary school and 9 village primary schools), 1 health center, 5 village health offices and 19 individual medical points.