Upper Big Branch Mine–South Mine ID: 46-08436 April 5, 2010 Accident Public Briefing June 29, 2011 Evidence still being collected and analyzed.
SVP Final
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1 PBS - SEVERSTAL RESOURCES. PBS COALS 46 years of operating history 4 th largest coal producer in Pennsylvania, the USA 48,000 acres of land in Somerset.
Upper Big Branch Mine–South Mine ID: 46-08436 April 5, 2010 Accident Public Briefing June 29, 2011
