This cache is based on the idea that every number combination must exist somewhere in any irrational numbers - for THIS cache, we will be using the square root of 2.
North coordinate: digits 531,434 to 531,440
West coordinate: digits 35,255,523 to 35,255,530
(The above numbers are the number of digits past the decimal point and does not include the "1.")
Congrats to THeSKuLL for FTF!!! (And yes, there are easier options.)
You can validate your puzzle solution with certitude.