《水经注·卷二十三》
获水又往东流经同孝山北面，山的北麓有楚元王墓，上圆下方，用石块垒砌而成，高十余丈，宽约百来步，南北向并列有十几座坟墓，都是石块垒结的。
获水又东径同孝山北。山阴有楚元王冢，上圆下方，累石为之，高十余丈，广百许步，经十余坟，悉结石也。
The River Huo flows east again past the northern side of Tong Xiao Mountain, and at the north foot of the mountain is the tomb of the Marquis Yuan of Chu (Chu Yuan Wang). It is square at the base and round at the top, and was built from blocks of stone, and is more than ten zhang high and about a hundred bu wide. About a dozen tombs, all made of blocks of stone, are arranged in a row to the north and south.