USGS Multimedia Gallery
Title: Marcellus Shale Outcrop in Highland County, Virginia
A Marcellus Shale outcrop in Highland County, Virginia, shows at the surface the object of shale gas development drilling in nearby states. Assessing undiscovered gas resources, like the USGS 2011 assessment of the Marcellus Shale, uses geologic mapping of outcrops like this in addition to extensive drilling, production, and geophysical data.
Location: Highland County, VA, USA
Photographer: James Coleman
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
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