Waterfall on Chestnut Ridge
This appears to be a high, wet-weather cascade which free-falls in several sections. There isn't much in the way of a drainage area above the falls, so it's only flowing after heavy rains. However, the view of it from the Parkway during these times is impressive.
This waterfall can be glimpsed from the Blue Ridge Parkway south of US 275 when it is flowing and the leaves are off the trees. It is located way up in a notch on Chestnut Ridge between the Old Butt Knob and Shining Creek trails in the Shining Rock Wilderness, so reaching it from the bottom may be possible, but I'm guessing it'd be pretty difficult, too.