50 kilometers. According to Baidu map information, Changtianwan Township belongs to Chenxi County, Huaihua City, Hunan Province. It is located in the south of Chenxi County, which was called Chenyang and Chenxi in ancient times. It belongs to Huaihua City, Hunan Province, located in the west of Hunan Province, in the north of Huaihua City, beside Chenshui River. The distance between the two places is 50 kilometers, and it takes 1 hour and 30 minutes to drive, passing through S250 and Nanxing Line.