Zhao Jin, located in the northwest of Tongchuan City, Shaanxi Province, has been a fortress since ancient times. According to legend, Emperor Yang Di visited this place and said, "Sunshine is golden, and everywhere is like gold", so Zhao Jin is famous all over the world. 1933, the older generation of revolutionaries established the first revolutionary base area in northwest China-Shaanxi-Gansu border revolutionary base area. Zhao Jin became the cradle of northwest revolution and wrote a glorious chapter in the history of China revolution. At present, Zhao Jin is one of the classic red tourist attractions in China 100, a national patriotic education base, a national defense education base, a scenic spot with ethnic characteristics and a national Danxia Geopark.