I came across the quiet little spot while hiking the other day. Sit a while and enjoy the view!
* UPDATE* This is no longer a nano on the bench. It is a green bison tube in a tree nearby. GPS is EXTREMELY jumpy here. While I was standing at GZ the coordinates were constantly changing. The given coordinated will take you to the general area just past the bench. You will have to search a bit but the bison is out in plain sight.
Good Luck!