The cache isn't at the given coordinates although you may see an eagle there, looking for breakfast. The cache coordinates are:
41 AB.CDE W077 FG.HIJ
You can discover A to J by solving this Sudoku.
And you can check your answers for this puzzle on Geochecker.com.
The difficulty rating is for the puzzle; once you have the coords, the cache will be easy to find.
FTF: A2G and dejesky. Congratulations!
