About 15 km. According to Baidu map query, Maojingba is about15km away from the wasteland. The wasteland township is located in the northeast of Longhua County, 40 kilometers away from the county seat. The township covers a total area of 288 square kilometers, governs 17 administrative villages and has a population of180,000. It is adjacent to Maojingba Township and Qijia Town in the east, Chengde County and Zhangjiying Township in the south, Tangtougou Town in the west, Pianying Township and Weichang County in the north.