At the posted coordinates you will find metal tags with eiter C2-21 or C1-20 and a four-digit number "XXXX." You will use this number with some math to replace the last three digits of the North and West coordinates. Note that the 28 changes to a 29 in the west coordinates.
To get the last three digits of the north coordinates, subtract 8561 from XXXX (XXXX-8561).
Now for the last three digits of the west coordinates subtract 9428 from XXXX (XXXX-9428).
The final is located at N 38° 32.XXX W 90° 29.XXX
Do not cross over the fence to reach the final. The cache is a cammo plastic bottle located outside the fenced area.
