Two photographs contrating parts of the Great Valley in Virginia. Above photograph shows the Shenandoah Valley in Augusta County, with low relief and elevations. (Photograph by Stan Johnson)
Above photograph shows the Great Valley near Radford. The elevation is higher south of Roanoke because the Great Valley is in higher drainage basins. More relief is present because the rocks are more faulted and the presence of different kinds of rocks creates more broken-up topography. (Photograph by Robert Whisonant)