Copper

A large drilling rig with a vertical mast and a yellow engine unit is positioned on a construction site, repeatedly driving a long, cylindrical metal pile into the ground. The rig's mast descends to push the pile into the earth, then retracts, creating a rhythmic up-and-down motion. The surrounding area features a dirt lot with stacks of concrete beams, a large cylindrical tank with a reflective surface, and a multi-story building in the background under a partly cloudy sky.