Gaolan County, belongs to Lanzhou City, Gansu Province. Located in central Gansu, it is bordered by Baiyin District and Yuchong County in the east, Chengguan District and Anning District in the south, Yongdeng County and Xigu District in the west, and Jingtai County in the north, with a total area of 1,680.53 square kilometers. As of June 2023, Gaolan County has 4 towns under its jurisdiction. As of 2023, Gaolan County has a total population of 112,000 people. Gaolan County has a long history and culture, known as the "famous clan from ancient Gaolan" reputation. Han, set up Jincheng County. Qing Dynasty, analyzed the northern part of the county to set up red water county (now Jingtai County). 1941, set aside the urban area and the outskirts of the establishment of Lanzhou City. Lanzhou Taiping Drums and Lanzhou Drums are listed as national intangible cultural heritages, and it is the hometown of Taiping Drums, the hometown of Chinese folk culture and art, and the national model county of urban-rural transportation integration. The Shichuan Ancient Pear Garden in the territory is listed as one of the first important agricultural cultural heritages. In 2022, Gaolan County's gross regional product was 8.95 billion yuan, down 3.0% from the previous year. Among them: the added value of primary industry is 930 million yuan, the added value of secondary industry is 3.86 billion yuan; the added value of tertiary industry is 4.16 billion yuan, an increase of 2.5%.