Posted coordinates will take you to a sign with red letters on it which you will use to make some computations to get you to the final
geocache location which is at
N 42° 49.ABC W 086° 05.XYZ
A number of letters in the last word
B the number of N's + G's + P's
C the number of O's
X the number of N's
Y and the total number of letters found in the last two words
Z number of letters in the second word.
Checksums North 10 West 18