If you are among those who have not yet discovered how simple my previous puzzle (GC9486N) really is, you should find this one reassuring. The cache is hanging in a tree, but not at the posted coordinates. Homer will give you the final location in exchange for the keyword.
On the Certitude page, all you have to do is enter the proper name of the tree, as suggested by the shameless visual pun you see below.
You can validate your puzzle solution with certitude.
Good on ya, kcmcacher (FTS) and jellis (FTF).