To offer a bit of solve for this, but I think most know it.
The treasure was found at the OVERLOOK (blue in text) at Falling Springs Falls above Covington, VA, near 64, at the base of tree, under a rock, 9 steps from corner end of fence. The text hinted to Thomas Jefferson, who once described the falls as one of the most beautiful.
Knowing Jefferson, then provided the 'keyword' to use to decipher the code under the falls. (this was Covington)
Wisdom was found by shift code of the other.
That's basically it!
Hope you all enjoyed it. Congrats again to the winner 'Genetic Blend'.....
MW is totally enjoying offering these hunts, and plan on lots of fun to come!