Yanggu
Yanggu lies in a mountain basin of central Korea, among streams feeding the North Han River. In Koryŏ times the Suin relay station connected the district with the roads around Ch'unju. A Confucian school was founded below Mount Pibong in 1405, early in the Joseon dynasty, giving the county a place for instruction and rites in honour of Confucius and the sages.