Blackhall Colliery 1980

1027 × 756

Underground mine scene

1213 × 989

Miners in a Tunnel — Black

1229 × 1124

Blackhall Colliery from South

1376 × 944

Blackhall Colliery from the North East

1259 × 876

Blackhall Colliery 1935

1233 × 870

Giant Mining Excavator — Blue, Industrial

1600 × 545

Miners at work underground

1300 × 854

Mining equipment in a coal mine

1264 × 1696

Mining operation with steam train

3000 × 2329

Giant Mining Excavator — Brown, Industrial

1500 × 1000

Mining Facility Construction

3000 × 1996