Also known as Tai he mountain, it is situated in Hubei Province near Shi Yan city. There are 72 peaks in the area, as well as 36 sheer cliffs and overhanging rocks, 24 ravines and 11 caverns. The highest peak and temple in the range is Jin Ding, which rises to an elevation of 1,612 meters. As the largest existing Daoist complex, Wudang has been built up over several centuries. The first temples on Mount Wudang were constructed during the Tang Dynasty (618-907). By this time Daoism had become a state religion, coexisting with both Buddhism and Confucianism as one of the three great religions of China. Daoist culture has existed on Wudang since the East Han Dynasty (25-220). The movement began with a few early Daoists settling on the mountain in order to practice their worship of nature. In the Song dynasty, the legendary Daoist priest Zhang San Feng achieved immortality at Wudang and is credited with originating concepts of internal martial arts, specifically Tai Ji Quan (13 postures). Well into the Ming dynasty, there was a surge in building temples at Wudang that honor Zhen Wu, a prince that left everything behind to study inner alchemy.