Mount Wangwu (Chinese: 王屋山; pinyin: Wángwū Shān) is a mountain situated about 45 kilometres (28 mi) north west of Jiyuan City in China’s Henan province.[1] Located in the Wangwushan-Yuntaishan National Park, Mount Wangwu is a famous Taoist site that includes the “Celestial Grotto of the Small Pristine Void” (小有清虚洞天), one of the Ten Grotto-heavens of Taoism.[2]
^Selin, Helaine, ed. (2007). Encyclopedia of the History of Science, Technology and Medicine in Non-Western Cultures. Kluwer Academic Publishers. ISBN0-7923-4066-3. p. 397