The Fall Line on the James River at Richmond (Photograph by Robert Whisonant)
The coastline in the Cape Henry area at Seashore State Park in Virginia Beach. (Photo by Robert Whisonant)
• Elevations along the Fall Line vary from 500 feet near Washington D.C. to a little over 200 feet in southern Virginia. Elevations at the shoreline are 0 feet.
• Average width of the Coastal Plain in Virginia is about 100 miles. The continental shelf continues from the shoreline for about 65 miles to the shelf edge.