THE CACHE IS NOT AT THE ABOVE COORDINATES
In order to find the cache, all you have to do is find this Mystery Building. It is located somewhere within the following coordinates:
NW 32 45.540 117 09.000
NE 32 45.540 117 08.480
SE 32 45.125 117 08.480
SW 32 45.150 117 09.060
Other hints happily given. Cache is now located in a short cropped bush near the center of the mural, about 25' from the tree under the eye.