 George Critchfield, 59, owner of Critchfield Lumber, stands at his mill on May 19, 2017 in Jenner Township, Pa. The new Corsa Coal Corporation mine has purchased lumber from Critchfield's lumber mill, which borders the new mine site. He is excited about the mine's opening and feels the mine has saved his business. &quot;It's a trickle down effect,&quot; he says. &quot;That's what you need, good paying jobs instead of McDonalds and Walmart.&quot;  Justin Merriman  for The Wall Street Journal 