Introduction to the No. 1 Rock in the Yangtze River: Yanziji, Caishiji in Anhui and Chenglingji in Chibi, Hubei are also known as the "Three Major Rocks in the Yangtze River". Pan Cigeng, a native of the Qing Dynasty, wrote a poem: "There are countless cliffs along the river, and Yanziji is the most exquisite." Therefore, Yanziji is known as "the most beautiful rock on the Yangtze River for thousands of miles."