Bucket-wheel excavator digging lignite (brown-coal)

- Image ID: G2AC70
Bucket-wheel excavator digging lignite (brown-coal)
franky242 / Alamy Stock Photo
Image ID: G2AC70
One of the world's largest bucket-wheel excavators is digging lignite (brown-coal) in of the world's deepest open-pit mines in Hambach in the Ruhr area in Germany.