When you drive up Mt. Graham, there is a turn off just at the end of Turkey Flat that leads to the Twilight Campground. This is called Twilight road by locals. As you drive down the road, there is a variety of geology. At these coordinates, you will see white lines criss-crossing through the granite on the hillside. The patterns they make reminded me of indiginous petroglyphs. They are, in fact, volcanic inclusions in the granite. The container is an eighy-inch, oval, plastic container covered in camo tape. It is placed a little to the right if you are facing the rock wall. The lines are best viewed from across the road. There is clear sky above, so the coordinates should be spot on. The container contains the usual: a log book, pencil, and trinkets. There is an enameled, turquoise and red bead for the first-to-find.