The coordinates above are not to the actual cache--you can find the cache by answering the following questions taken from the Harry Potter books. The cache is located at: N 41 09.ABC W 081 20.DEF
A = Length of Harry's original holly wand (inches) minus 9
B = Number of Fluffy's heads plus 5
C = Number of years a typical student attends Hogwarts
D = Number of Hermione's siblings
E = Number Ron's brothers minus 4
F = Number of Hogwarts Houses plus 4