Changde (常德)is a city in the Hunan Province of China, with a population of 5,989,300.the ancient name of "changde" is "langzhou"
Changde is known for its many Old Stone and New Stone Age sites. About 500 of them have been discovered so far.
The official webportal of Changde
http://www.changde.gov.cn/changde/80509539920642048/20050809/54488.html