In July 2002, 18 miners working at the Quecreek mine in Somerset County, Pennsylvania, entered a chamber 240 feet below ground and accidentally broke through the wall of an abandoned, flooded mine, unleashing millions of gallons of trapped water.
In July 2002, 18 miners working at the Quecreek mine in Somerset County, Pennsylvania, entered a chamber 240 feet below ground and accidentally broke through the wall of an abandoned, flooded mine, unleashing millions of gallons of trapped water.