How many kilometers is it from Kunming to Yuanyang?

According to Baidu map query, the whole journey from Kunming to Yuanyang is about 257.4 kilometers, and the driving time is about 3 hours and 9 minutes. Kunming, also known as Spring City, is a prefecture-level city, provincial capital, megacity and central city in central Yunnan, one of the important central cities in western China determined by the State Council, and an important tourist and commercial city in China. Yuanyang County is one of the counties under the jurisdiction of Honghe Prefecture in Yunnan Province. Located in the south of Yunnan Province, the county covers an area of 22 12.32 square kilometers with an east-west span of 74 kilometers and a north-south longitudinal distance of 55 kilometers. It has jurisdiction over 3 towns, 1 1 township, 134 villagers' committees and 4 community neighborhood committees, 1245. The land in Yuanyang County is all mountainous, and there is no plain. The lowest altitude is 144m, the highest altitude is 2939.6m, the relative height difference is 2795.6m, and the annual average temperature is 24.4℃.