Yanshan Mountain in Fangshan District of Beijing belongs to the Sixth Ring Road. Because according to Baidu map, Yanshan Mountain in Fangshan District of Beijing is located in the southwest of Beijing urban map and belongs to the outside of Beijing Sixth Ring Road. If the distance from the Sixth Ring Road to Beijing Yanshan is calculated, it will be nearly 10 kilometers and more than 50 kilometers away from the center of Beijing. Beijing Yanshan belongs to Fangshan District, Beijing.