Cheongnyangsan Mountain Provincial Park was regarded during older times as a place where many famous high priests and scholars resided. At Cheongnyangsan Mountain, the Giam cliff forms 12 peaks and the Nakdonggang River flows through it. On this mountain stands the Cheongnyangsa Temple, which was built by Buddhist monk, Won-hyo (617 ~ 686.3.30) during King Munmu’s (reign 661~681) third year of reign during the Silla Period (BC57~AD935). There are also various temples, Gwanchang Falls, and many other attractions nearby. Behind the Provincial Park’s boulder is a monument with a poem inscribed on it by the famous scholar Toegye I Hwang (1501~1570) of the Joseon Period called Cheongnyangsanga. When Toegye was planning to build Dosanseodang, a school for the teachings of Confucianism, he had a tough time deciding on whether to build it there at Cheongnyangsan Mountain, or the alternate spot, where it was eventually built, on a decision made at the last minute. Aside from Toegye I Hwang, Won-Hyo and Ui-Sang (625 ~ 702), the Buddhist monks, Gim-Saeng (711 ~ 791), a master of calligraphy, Chi-won Choi (857 ~ ?), a scholar, and many others came to this mountain to cultivate their arts. Their presence still lingers in legends, being retold to this day. Osandang is believed to have been built by the disciples of Toegye at the spot where Toegye conferred with literary men, and is one of many relics found here, among them the Cheongnyangsan Mountain Castle, which is believed to have been built by King Gongmin (reign 1351~1374) of Goryeo Period, to escape the rebellions of the peasantry.