This is a puzzle cache so do not go to the published coordinates. I suspect it's private property anyway so you might get yourself into trouble. The cache has a sister cache called 173 and those who have solved that one will find this one drop dead easy. If you haven't solved that one, just ponder for a moment where in the world you are and you'll soon have the log signed. Good luck.
There are safe areas to pull off the road to the South of GZ on each side of the road.
UPDATE:.
When you have the solution you need to Geocheck your answer as the actual hide is a few metres away from the solution.
Check your solution