495.6 kilometers. Guoyang County, belonging to Bozhou City, Anhui Province, is located in the Yangtze River Delta. Laojun Mountain in Yunnan is located at the junction of Yulong County in Lijiang City, Jianchuan County in Dali Prefecture and Lanping County in Nujiang Prefecture. According to Baidu map, Yang Guo is 495.6 kilometers away from Laojun Mountain, and it takes 5 hours and 48 minutes to drive.