Mount Lu (simplified Chinese: 庐山; traditional Chinese: 廬山; pinyin: Lúshān, Gan: Lu-san), also known as "Kuanglu" (匡庐) in ancient times, is situated in the northern part of Jiangxi (江西) province in southeastern China, and is one of the top ten famous mountains in the country. The oval-shaped mountains are about 25 km long and 10 km wide, and neighbors Jiujiang city (九江市) and Yangtze River (长江) to the north, Nanchang city (南昌) to the south, and Poyang Lake (鄱阳湖) to the east. Its highest point is Dahanyang Peak (大汉阳峰), reaching 1,474 m above sea level, and is one of the hundreds of steep peaks that towers above a sea of clouds that encompass the mountains for almost 200 days out of the year. Mount Lu is known for its grandeur, steepness, and beauty, and is part of Lushan National Park, a UNESCO World Heritage Site since 1996, and a prominent tourist attraction, especially during the summer months when the weather is cooler.
Popular attractions in Mount Lu include the Immortal Caverns (仙人洞), Meilu Outhouse (美庐别墅), Five Old Man Peaks (五老峰), White Deer Cavern Academy (白鹿洞书院), Three Tiled Springs (三叠泉), Luling Lake (芦林湖), Lushan Hot Springs (庐山温泉), Botanical Gardens (植物园), the Bamboo Temple (竹山寺), Guanyin Bridge (观音桥), Peach Blossom Garden (桃花源), and many more.
- Hui-yuan founded Pure Land Buddhism here on the northwest slope in 402. Also, the Donglin Temple is located here.
- Lushan National Park is a UNESCO World Heritage Site, and Lushan Quaternary Glaciation National Geopark is a member of UNESCO Global Geoparks Network.
- The Lushan Botanical Gardens features tens of thousands of plant species.
- Below the Five Old Men Peak is the White Deer Grotto Academy, named after the poet Li Bo (Chinese: 李渤; ) (not to be confused with the famous poet Li Bai), who raised white deer there. It is one of the oldest institutes of higher learning in ancient China.
- West is the Flower Path which provided inspiration to Bai Juyi, a famous poet who lived during the Tang Dynasty.
- Between the Yangtze River and Lake Poyang lie the Greater and Lesser Tianchi Lakes, the Jingxiu Valley, and Lulin Lake. On the north bank of the latter is the Lushan Museum, which features pottery and bronzes dating from various periods of ancient China, as well as calligraphy from the Tang Dynasty and paintings from the Ming and Qing dynasties.
- At the centre (between three peaks), and at an altitude of over 1 kilometer above sea level, is the town of Guling, which is linked by a mountain highway to neighboring spots in the region.
- World famous lu shan tea (simplified Chinese: 庐山云雾茶; traditional Chinese: 廬山云霧茶) is grown in the mountains.