The posted coords are the location of a neat street sign, not of
the cache. The cache (35mm film canister) is at N45 29.ABC, W122
42.DEF
As far as I know, the only other 3 kenken-related caches are all
in Germany. Lucky You!
Update 1 Feb 2010: I placed a new cache container about
40 feet away. From the solution dictated by the puzzle above, add
0.008 to both lat and lon.
Jvguva 10 srrg bs genvy, qbjauvyy fvqr, onfr bs sve.