Cache is not at the posted coordinates.
This is a bonus cache for anyone who has found all three Poems puzzle caches:
This cache can be found by solving the Poems puzzles.
Caches are archived, so no caches to be found for the individual Poems. The clue words are given through the geochecker for each puzzle.
Poems: Awful Limericks
Poems: Waiting Lament
Poems: Unique Ode
The solution to the puzzle is the three clue words from each Poems: puzzle, in the following order:
Awful Limericks / Waiting Lament / Unique Ode
Just enter those clue words as the solution in the certitude checker
and you'll get the coordinates for the bonus cache.
You can validate your puzzle solution with certitude.
Hooray for you! 
Congratulations to benh57 and foon for FTF!