Neiswonger Construction Inc., which operates the Maggie Lynn limestone quarry in Washington County, is hoping to start extracting the rock underneath it. The company is proposing to build an underground mine that would stretch for 337 acres in Deemston Borough, roughly the area of Schenley Park. It might take 30 years to extract all that rock, cranking out 250,000 tons…
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Three Hurt From Underground Mine Air Blast
Three workers were hurt after ground apparently shifted at an underground limestone mine in western Pennsylvania causing a rush of air through the mine’s entrance, according to a report by the Associated Press.
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