Sanhe is administrated by Hebei Province's Langfang City. A county-level geographical area, it is located at the border of Beijing and Tianjin. It is separated from Beijing by a river. Sanhe is located in the core area of China's Golden Triangle. The triangle consists of the three major cities of Beijing, Tianjin and Tangshan. Sanhe enjoys a superior geographical position and broad development prospects. Attractions in the territory include the Lingshan Pagoda, Lingshan Temple, Damaima Ginkgo and the Longtan Valley.