35 kilometers. Dingbian County is located in the northwest of Shaanxi Province, at the westernmost end of Yulin City, at the junction of seven counties (banners) in the four provinces (districts) of Shaanxi, Gansu, Ningxia and Inner Mongolia. Genji Gaode map shows that it is 35 kilometers from Dingbian to Baiwanzi. Baiwanzi Town is located in the south of Dingbian County. It is a town mainly engaged in agriculture. The buckwheat produced in Baiwanzi Town is sold to Japan; the potatoes produced are sold to more than ten provinces and autonomous regions across the country, and are exported to the Philippines, Malaysia, India and other countries.