Mountain Lu or Lushan (, Gan: Lu-san), officially named Mountain Lu National Park, is a mountain in China. It was also known as Kuanglu () in ancient times. It is situated in Jiujiang, China, and is one of the most renowned mountains in the country. Mountain Lu is located primarily in Lushan City within Jiujiang, although its northern portions are found in Jiujiang's Lianxi District. The oval-shaped mountains are about long and wide, and neighbors Jiujiang and Yangtze River to the north, Nanchang to the south, and Poyang Lake to the east. Its highest point is Dahanyang Peak (), reaching above sea level. Dahayang Peak is also one of the hundreds of steep peaks that towers above the so called sea of clouds that can encompass the mountain for almost 200 days each year. Mountain Lu is known for its grandeur, steepness, and beauty and a prominent tourist attraction, especially during the summer months when the weather is cooler in the mountains than elsewhere. The mountain and the surrounding region is also one of the "spiritual centers" of China, containing many Buddhist and Taoist temples in addition to landmarks of Confucianism. Because of its striking beauty and sacred importance, Mountain Lu National Park has been a UNESCO World Heritage Site since 1996. The overlapping Mountain Lu Geopark is a member of UNESCO Global Geoparks Network. History Mountain Lu contains important sites and temples for Taoism, Buddhism, and Confucianism and even Christianity. Between AD 386 and 402 during the Jin dynasty, Huiyuan founded Pure Land Buddhism and Donglin Temple on the slopes of Mountain Lu. During the Tang dynasty (618–907), Taoist temples were constructed nearby to house sacred scriptures. The White Deer Grotto Academy, founded in AD 940, was developed into a renowned center of academic research during the Song dynasty under the direction of Confucian scholar Zhu Xi. The academy was continually open until at least the 19th century. Other important medieval structures on the mountain include the grave of the famous Tang dynasty poet Tao Yuanming and imperial pavilions during the Ming dynasty. In later years, Kuling in Mountain Lu became a summer resort for Western missionaries in China. Absalom Sydenstricker, the father of Pearl Buck, was one of the first five missionaries to acquire a property in the Kuling Estate on the mountain. The development of Kuling was instigated by the Reverend Edward Little and Dr. Edgerton H.