Cache container is not located at posted coordinates. Please see stages of the nearby The Wildlife of 29 Palms Adventure Lab for proper coordinates, which will lead you to an accessible location. While you're in the neighborhood, why not pop into the 29 Palms Visitor's Center? Their friendly staff can provide you with local maps, event information and much more!
Please use stealth at the cache location and replace container as you found it.
CONGRATS to bythewind777 for FTF!