From Wikipedia, "The lithosphere is the rigid outermost shell of a rocky planet"

This photo was taken during a program offered by the Tiadaghton State Forest staff, titled "Marcellus Shale and Natural Gas Development on Pennsylvania State Forest Lands."  The program was part of the National Association of Geoscience Teachers Eastern Section Conference.  These wellheads, nicknamed Christmas trees, are on a pad in the Tiadaghton State Forest.  Visit the PA DCNR website to learn morem about Natural Gas Development and State Forests.



Marcellus Shale Wellheads in Tiadaghton State Forest

This image, taken on a rainy day, is the stream bed of Rocky Run, with approximately one foot of the channel anchored with plant roots exposed, at Tyler Arboretum in Media, PA.

Rocky Run, Media, PA

The "ghost town" that even lost its zip code, Centralia still fascinates Earth scientsits and non-scientists alike with the underground fire that still burns to this day.  At times, plumes of smoke can still be seen coming from the ground.