*** THE CACHE IS NOT AT THE POSTED COORDINATES ***
To find the cache:
Proceed to the posted coordinates and enjoy the monkey business you find there. Take note of the three digit number he is monkeying with and we'll call that "ZZZ".
Divide ZZZ by two (2) and add Thirty (30) and lets call that YYY and insert it into the formula below. As an example if you the number were 900 you would divide by 2 getting 450 and add 30 getting 480.
Final Coordinates are:
N 41° 51.725
W 088° 01.YYY
