The cache is not at the published coordinates. It is instead for the summit of North Hill. The cache can be found by working out the puzzle below:
The answer to this puzzle is an eight-letter word which must be entered into the checker in exchange for coordinates. Good luck!
You can validate your puzzle solution with certitude.
I will change the difficulty rating depending on how hard people find it. Feel free to message me for some help after the FTF has gone. I'll also add a hint if no one works it out within a few months.
