NOTE: THE CACHE IS NOT AT THE LISTED COORDINATES
Solve this puzzle and you should be able to find the final coordinates to the cache:
75-58-37-84-96 35-39-68-73-86
Congratulations to whizzkid for FTF
For FTF: Circulated Mexico one Peso silver coin, 1964
Try multiplying the numbers in each pair and then use the "right digit" from each result to get your coordinates.