Introduction to the Fenghuang Mountain Revolution Site: The Fenghuang Mountain Revolution Site is located at the foot of Fenghuang Mountain in Yan'an City. It was the first residence of the Central Committee of the Communist Party of China after arriving in Yan'an on January 13, 1937. Open to the outside world are the former residences of Mao Zedong, Zhou Enlai and Zhu De and the former site of the Operations Research Office of the Red Army Headquarters.