Coal Surface Mine
Inga Spence
Coal Mine, Wyoming
Inga Spence
Surface Coal Mine
Inga Spence
Surface Coal Mine #1
Inga Spence
Coal Surface #1
Inga Spence
Engineer With Coal Sample
Inga Spence
Coal Mine, Arizona
Richard W Brooks
Abandoned Coal Mine
John Shaw
Coal Miner At Work, C.1940s
H. Armstrong Roberts/ClassicStock
Coal Formation #1
Spencer Sutton
Coal Formation #2
Spencer Sutton
Panian Mine, Semirara Island
NASA/Science Source
Wooden Car Loaded With Coal In Mine
H. Armstrong Roberts/ClassicStock
Workers Sorting Coal, C.1930s
H. Armstrong Roberts/ClassicStock
Acid Water From Coal
Ray Ellis
The Great Reading Strike
Photo Researchers
Coal Gondolas
Inga Spence
Cherry Mine Disaster Orphans, 1909
Science Source
Cherry Mine Disaster, 1909
Science Source
Bituminous Coal Cleaning Plant
Theodore Clutter
Norton, Va And Cumberland Mts
Kenneth Murray
Cattle Graze On Reclaimed Land
Inga Spence