The cache is not located at the posted coordinates.
You have 12 weights A..L (all different from each other), each representing a whole number from 1 to 12. Find the proper arrangement so that the scale below is properly balanced. Then you'll get the coordinates of the cache. Note: The ropes and the rods of the scale are assumed to have negligible weight.
|
|
+--+--+--+--+--+--+--+--+--+--+--+
B A | H |
| |
+--+--+--+ +--+--+--+--+--+--+--+
L D G | C F
|
+--+--+--+--+--+--+--+--+
J |
+--+--+--+--+
K I E
You can check your answers for this puzzle on Geochecker.com.

You can validate your puzzle solution with certitude.
Congratulations to Team Pluto for another very early morning FTF.