The Geology of Virginia

A Resource for Information on the Commonwealth's Geology

  • MInerals, Rocks & Fossils
  • VA Geologic History
  • Geology Now
  • Hydrology
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  • WM Geology

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Terms and Definitions

Geologic time scale

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APlateauDEM

The Appalachian Plateau’s rugged terrain

In Virginia the Appalachian Plateau province is not particularly ‘plateau-like’, rather the region is characterized by rugged topography and steep slopes.  It is a well-dissected upland, and streams draining the region have a classic dendritic drainage pattern.  The featured image of Buchanan County (and the surrounding areas of Kentucky and West Virginia) is a shaded relief map […]

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What’s New in Virginia Geology

VAlavas

Virginia is for Lavas- The Catoctin Formation

Many of the highest peaks in Shenandoah National Park (including Hawksbill, Stony Man, and Hightop Mountain, just to name a few) are underlain by distinctive bluish-green rocks that were once ancient lava flows (Virginia is for Lavas!), and are part of a geologic unit known as the Catoctin Formation.  From the presidential retreat at Camp David to Jefferson’s […]

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