The cache is NOT located at the posted coordinates
17-475/912 88-237/1113 88-8596/3113 17-196/919 17-305/919 88-2258/1113 88-2164/1113 88-200/1119
88-8596/3113 60-117/310 17-7057/2912 88-2392/1113 17- 1/910 66-25/531 17-346/919

You can validate your puzzle solution with certitude.
Bring your own pen