Gaodengshan, also known as Phoenix Mountain, is a red sandstone mountain with an altitude of 155 meters. The Ming Dynasty's Records of Zheng De Jian Chang records: "Fengshan, the legendary phoenix gathers here. Today, it is common for people of all ages to help and appreciate the scenery of Yunyuan. " In the Qing Dynasty, "Tongzhi Nancheng County Records" recorded: "Phoenix Mountain in Beiguan, Guoerli in the northwest, the main mountain of the county, and the world-famous phoenix incense set here, hence the name. The ridge uplift wing is repaired, and the word' Fenggang' is engraved on the mountainside. " Two stone carvings recently discovered are located on the mountainside. One is called "Fenggang" and the other is called "Chaoyang Mingfeng", both of which are inscribed in regular script. Among them, the "Fenggang" stone carving is 2.2 meters long and 1.5 meters wide, with each word 160 cm square; The stone carving of "Chaoyang Mingfeng" is 2.7 meters long and 1.2 meters wide, and each character is 60 cm square. Both stone carvings are east-west, about 30 meters apart.

Who wrote these two Ming Dynasty stone carvings? According to the Records of Nancheng County, Zhu Youbin, the king of Yi Ming, traveled many times when he sealed Jianchang (Gu Chengnan). Therefore, some experts concluded that this stone carving was probably inscribed by Zhu Youbing. Zhu Yuanzhang, the founding emperor of the Ming Dynasty, in order to prevent the struggle for status and power within the royal family, while strengthening centralization, he implemented the enfeoffment system and enfeoffed his descendants to all parts of the country to "screen the royal family" and let them "support the royal family". His descendants successively had two governors in Nancheng County (formerly known as Jianchang). The first was Zhu, the sixth son of Injong, who was named King Jingxian in 1429 and moved to Qichun County, Hubei Province 17 years later. The second branch was Tang Xianzong's fourth son Zhu Youbing, who was made King Duan Yi in 1488 and became a vassal of Jianchang House in 1495. The descendants of Duan Yiwang Zhu Youbing experienced seven generations and eight kings in Cheng Nan, totaling 150 years, until the death of the Ming Dynasty, which is the oldest of the three palaces of Jiangxi, Huai and Yi.