Uryuyama Castle is a yamashiro (a castle on a mountain) that was built on Uryu-yama Mountain (with a height of 301m above sea level) in present Kiyozawaguchi-cho, Kitashirakawa, Sakyo Ward, Kyoto City (Otagi County, Yamashiro Province at that time) in the Sengoku period (period of warring states).
瓜生山城（うりゅうやまじょう）は、現在の京都市左京区北白川清沢口町（当時は山城国愛宕郡）にある瓜生山（標高301m）に築かれた戦国時代(日本)の山城である。