Holcim Gravel and Grit Quarry in fog, Plettenberg, Sauerland, North Rhine-Westphalia, Germany Stock Photo - Alamy

Holcim cement plant hi-res stock photography and images - Alamy

Working in a limestone quarry and gravel pit in Brandenburg - a

Holcim hi-res stock photography and images - Alamy

Above the pits hi-res stock photography and images - Page 7 - Alamy

Gravel quarry hi-res stock photography and images - Page 2 - Alamy

Limestone mining hi-res stock photography and images - Alamy

Holcim hi-res stock photography and images - Alamy

Limestone mining hi-res stock photography and images - Alamy

Ruhr landscape hi-res stock photography and images - Alamy

Holcim quarry hi-res stock photography and images - Alamy

Holcim cement plant hi-res stock photography and images - Alamy

Gravel quarry hi-res stock photography and images - Page 2 - Alamy