2. Interpretation: the name of the ancient Jingzhou Mountain. That is, Xiaoyou Mountain is located in the northwest of Yuanling County, Hunan Province.
3. Source: Taiping Magnolia Volume 49 is quoted from Jingzhou Ji written by Sheng Hong of the Southern Song Dynasty: There are thousands of books in the caves on Xiaoyou Mountain. According to legend, Qin people studied here and lived here. Later, Youyang seldom consulted the ancient books handed down from generation to generation.