This video shows the big huge caterpillar diesel 793D dump trucks at Bingham Copper Canyon in Utah state.
Bingham Canyon Mine
The Bingham Canyon Mine is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, USA, in the Oquirrh Mountains.
According to Kennecott
Corporation, it is the world's largest man-made excavation.