If you've found GC1AERG Barrels on a wire, then you've seen these unique items before. They appear again here and are at a lower elevation. 
Excellent trails for hiking, running, horseback riding and biking. Several other hides in the area.
Great views of the canyon and American River all along the trails near GZ.
The regular hazards like snakes, ticks, poison oak, stickers and star thistle can be found in the area and possibly some larger wildlife as well.
Coords should get you close, let us know if you get a better reading.
Please replace the cache as found after logging. Have Fun! 
Congratulations to michanic for FTF!