Thrust a spade into the ground, and you'll find not only oil but deeply buried history. It is the Luoyang Spade, a traditional tube-shaped tool widely used by Chinese archaeologists. Today, Luoyang Spade still enjoys great popularity in all walks of life. In 2015, the forging techniques of Luoyang Spade was included in Henan's Representative List of the Intangible Cultural Heritage. (Text & Photo: Yuan Min/Dahe Daily)