<p>An entrance to the Portal 31 coal mine that has been turned into a tourist attraction in Lynch, Ky., Oct. 18, 2014. Passing through a concrete archway topped by the words "SAFETY THE FIRST CONSIDERATION," visitors ride a miniature train several hundred feet into the hillside as a guide and animated exhibits illustrate coal mining's evolution from hand loading to the mechanization that forced many to leave these mountains in search of work. An entrance to t…

March 31, 2015