Do Not cross the water channel from the south if there is water present. It can be deep.
There are limited access points to the trail, so if you aren't familiar with this part of the trail, you might want to look at google maps to find an access close to the cache you are looking for.
Cache is along the trail just east of the well. The well ( the fenced in area) belongs to Freeport McMoRan copper and gold for their mine west of Green Valley.