What structure does Proctor, North Carolina and Fontana Lake have in common?
Proctor, North Carolina:  The town was flooded by Fontana Lake, which was created by the construction of the Fontana Dam, and remains submerged unless lake levels are very low. Fontana Lake: Fontana Lake is a reservoir impounded by Fontana Dam on the Little Tennessee River located in Graham and Swain counties in North Carolina.
Fontana Dam