The Guoliang Tunnel (Chinese: 郭亮洞) is carved along the side...
wikipedia - 05 Mar 2023The Guoliang Tunnel (Chinese: 郭亮洞) is carved along the side of and through a mountain in China. The tunnel links the village of Guoliang to the outside through the Taihang Mountains which are situated in Huixian, Xinxiang, Henan Province of China.[1]