Deep underground – Coal mining in Pennsylvania's Anthracite Region – Canadian Military History

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Deep underground in Pennsylvania's Anthracite coal region – The Lawawana Coal Mine & Museum – Canadian Military History

History of anthracite coal mining in Pennsylvania - Wikipedia

First report of progress in the anthracite coal region : the geology of the Panther creek basin in eastern end of the southern field - Pennsylvania Geology - Penn State University Libraries' Digital Collections

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Coal In Pennsylvania - Pennsylvania Mines and Mining - Library Guides at Penn State University

Early Coal Mining in the Anthracite Region (PA) (Images of America): Richards, John Stuart: 9780738509785: : Books