At the posted location is a sign. After this sign continue west doing the loop clockwise and look for another sign (stay to the right). I have a waypoint for the second sign as well.
Clues:
1st sign: 2 men in a canoe: The area boasts A0 species of fish...2B of reptiles.....B00 species of moths and butterflies...
2nd sign (N39 07.204 W84 48.753) Building houses. 19X9 the year it was discovered ..... Site 1Y..... Y,000 sq feet.... X hearths
Final:
N 39° 07.YAB W 084° 48.7AX
Sum check Y+E+B=14 E+X=14