Rachael's Revenge! Mystery Cache

So, Mr. P & G - I think your Dad is getting lazy huh? Mr. GC6W0YR.  Well, here is the result, haha! We placed one here anyway, more or less!

All in good fun!  Enjoy.  This will not be too bad!  You will need to visit a sign on Old Bernardston Road.  This sign will have to do with King Philip and his hill!  It is at N 42 41.035 W 72 28.575.

N42 41.00X - How many letters are in the last word in the paragraph , that will give you X

W 72 28.XXX - Take the two dates, what is the difference between the two dates and then add that to 467 for XXX