Re-unite Gondwanaland!!
You've got some fantastic geology right there in Tennessee, Bob. I have lots of relatives around Knoxville and the Smokies. A large portion of the Smokies (also the Blue Ridge) formed over a billion years ago when a super-continent even older than Pangaea existed. Gondwanaland was the once separate southern portion of Pangaea. When it crashed into North America around 250 million years ago, it connected Africa to the now east coast of North America (we've since rotated about 90 degrees and moved northward from a position SOUTH of the equator--we've got 400-million yr old tropical marine fossils in the Catskill Mts).