Deep underground – Coal mining in Pennsylvania's Anthracite Region

[Richards, John Stuart] on . *FREE* shipping on qualifying offers. Early Coal Mining in the Anthracite Region (PA) (Images of America)

Early Coal Mining in the Anthracite Region (PA) (Images of America)

The truth, the whole truth and The Damn Truth – Canadian Military

Map of Pennsylvania showing locations of 140 abandoned coal-mine

Exploring Pioneer Tunnel Coal Mine in Schuylkill County - PA Bucket List

Coal Types, Formation and Methods of Mining

Site of the First Deep Underground Anthracite Mine in America Historical Marker

The surprisingly clear view of a modern coal miner

Mahanoy Area Historical Society

Pittsburgh coal seam - Wikipedia