Stock photography, photos: Earthen Dam - Roanoke River, VA Stock photos of A small rock (earthen) dam on the Roanoke River along the Blue Ridge Parkway in Virginia, USA Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: energy, power, electricity, electric, hydro, hydro power, dam, barricade, blue ridge parkway, Virginia, hydroelectric