<http://schema.org/description>
"                The Marcellus Shale natural gas boom that is affecting so much of Pennsylvania isn\u2019t coming to our area.  You won\u2019t see well-drilling rigs or tanker trucks full of water on our highways, or pick-up trucks with Texas and Oklahoma license plates in our parking lots.  Why not?  There\u2019s no Marcellus in south-central and southeast Pennsylvania.  And who is Marcellus, anyway?  Marcellus is the name of a geologic formation \u2013 shale that underlies a good portion of northern and western PA and that is full of natural gas.  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://extension.psu.edu/cumberland/news/2011/marcellus-shale-natural-gas-what-the-2018gold-rush2019-means-for-us>