Pictures Marcellus Shale Festival August 16, 2013 / 4:23 PM EDT / CBS News Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival Marcellus Shale Festival