The Guoliang Tunnel is located in the Taihang Mountains, in the Hunan Province of China.
The story that led to its development is an inspiring one.
The village was nestled in a valley surrounded by towering mountains.
It was basically cut off from civilization.
So they sold goats and herbs to buy hammers and steel tools.
Thirteen strong villagers began the project.
The tunnel was opened to traffic on May 1, 1977.
