Numbers 3 Mystery Cache

The cache is not to be found at the given co-ordinates and there is no need to visit that location.

The true location of the cache can be found by solving the following puzzle.

If January = 1071  and  May = 1335  and

March = ABCD

December = EFGH

June = JKLM

then the true cache location is given by

N 50 5H.FK(D-B)   W 000 5(F+G). (A+C)F(C+G)

A correct solution of the puzzle will give a checksum (total of all 15 digits) equal to 54

Please bring your own pen or pencil to sign the log sheet.

Remember that no signature equals no find.