Cache is not at posted coordinates.
To obtain the north coordinates, subtract the acute angle (a cute angel?) of 56 from the last 3 digits.
To obtain the west coordinates, add the obtuse angle of 172 to the last 5 digits. Yes, all five change.
The result is very close along the same road. Park briefly along the street. In winter, there's a good view from the final location. There's an even better view higher up on the road. Stay on road side of guardrail.
Congratulations to Woosa on the First-To-Find.