These 15 Rare Photos Show Pennsylvania's Coal Mining
Pennsylvania's rich coal mining history dates back centuries to the late 1700s and boomed between 1870 and 1930 After the boom the industry began a steady decline that continues to the present day In fact between September 2014 and April 2016 the industry as a whole in the U S lost an estimated 191 000 jobs Here are 15 rare coal mining
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