Warning! This cache might drive ya nuts!
Examine the two images below. Fit "The NUTS" together into the hexagonal shape shown in "The KEY". Make sure that adjacent numbers always match each other. (For example, if G is 2, H must also be 2.)
Once you have the solution put together properly, you can use the key to solve for the coordinates. There is only one possible solution.
North (B-F)(M+AA)° (N)(E).(U+HH)(J-NN)(MM+X)
West (A)(FF)(K-Q)° (D-P)(OO).(CC)(L+S)(KK+LL)
You can check your solution coordinates with Geochecker.
5/16/10 NOTE: Thanks to repeated vandalizations at the original hiding spot, the cache was moved to a new location on 5/16/10. The only thing that has changed about the solution is the formula at the end used to produce coordinates. If your solution is older than 5/16/10, I'm afraid you'll have to work through the formula again.
The cache itself shouldn't be too hard to find once you get the coordinates. It's a micro with no room for items, so bring your own pen. Enjoy!