Cache is not at the posted coordinates. However it is somewhere within Morgan Swamp. In order to find the cache you must first solve this puzzle...

Once youve solved the "wordoku", youll see certain spaces have been highlighted. Once you have all 9 letters, unscramble them into 2 words: _ _ _ - _ _ _ _ _ _. Make sure to add the hyphon in; for example "The-Starter". Then enter your answer into the certitude below for coordinates and a detailed hint.
Congrats to Trail Buzzards for FTF!

You can validate your puzzle solution with certitude.