In Pennsylvania, Marcellus Shale operations will be common in the southwest and northeast. These areas have a Marcellus layer of shale, then there is a Utica layer and a Needmore layer. There are more operations where the gas is "wet" vs. "dry". Fracking is deep--about a mile below the surface. The biggest visual impact is where the actual well head is, rather than where the underground fracking occurs underground (which goes out like a spider web horizontally from the drill head site). The greatest pollution concern comes from operations that spill frack water above ground or the seismic vibrations disturb a drinking water well. So if buying a home with a well, always get water quality and flow tests. Marcellus operations tend to be in more rural areas because at least 5 acres are needed for the well head and water storage lagoon. Anytime you buy a house, drive around the neighborhood. There can be other influences besides drilling that you might not like. In the case of fracking, the well heads and the compressor stations are probably the biggest eyesores. The compressor stations generate noise and some air pollution, too. As the MS wells get older, more compressor stations will be added.