Iron Wall Cliff Carvings

　　Located in Yinshan Village, Xingguo Town, Yangxin County. The carvings are made on a natural cliff, with the two characters “铁壁” (Iron Wall), each 0.22 meters in diameter, carved in intaglio regular script. The *Yangxin County Annals* record them as being written by Su Dongpo. Nearby, there are also imitation carvings of the “Iron Wall” characters by Yang Hu, the prefect of the region during the Ming Dynasty’s Jiajing era. The calligraphy exhibits standardized composition and a profound, rigorous style, possessing significant artistic value.

　　Information source: Hubei Provincial Cultural Relics Bureau