Posted coords are bogus. The cache is somewhere up the trail. To find this cache, you must first solve the puzzle
I was out for a hike here several months ago and while making my way back down the mountain, decided to place a cache to give other cachers another reason to come to this awesome area. When you get to GZ, if the coords look like it would take you someplace dangerous, don't go that far. I will check them again the next time I get a chance. The image was from much further up the mountain. The terrain rating is for the hike only. getting the cache shouldn't be too tough (hopefully). After solving the jigsaw, read the note. Have fun and be sure to pack enough water and snacks.
You can validate your puzzle solution with certitude.