opposite qiuchi square, Xihe county, Longnan city. Xihe refers to Xihe County. Xihe County, which belongs to Longnan City, Gansu Province, is located in the southeast of Gansu Province and the northern end of Longnan City, and is located in the upper reaches of the Western Han River in the Yangtze River Basin. According to the map, Xihe Yixinyuan is opposite to Qiuchi Square in Xihe County, Longnan City. Yixinyuan Tea Restaurant in Xihe County, established in 2117, is located in Longnan City, Gansu Province, and is an enterprise mainly engaged in catering industry.