If you aren't familiar with this kind of puzzle, you may want to try solving GC61BVX: (NSML02: a Micro Logic Tutorial) or GC65G5M (NSML08: An after-dark micro logic) first.
You can get the coordinates by solving the following: The nine letters (A, B, C, D, E, F, G, H, J) represent the digits from 1 to 9. No two letters are equal. "B*A" represents multiplication and "BA" represents a two-digit number. So if B=6 and A=3, then BA=63 and B*A=18.
Additionally, for this puzzle, each of the 4 symbols @, #, %, & represent one of the math operations +, - , * , ÷ (i.e. addition, subtraction, multiplication and division).
J @ F = EB
A @ J = BE
F # A = BB
G % E = J
D & H = B
The geocache is hidden at N 45 04.X, W 064 26.Y, where ....
X = BEA+CJD and Y = JHG-BCF
You can validate your puzzle solution with certitude.