Slept in back of Taco, started off before dawn in a counterclockwise direction around mountain south of Eagletail. Reached arch seen on topo at dawn, turned out to be THREE arches in a thin wall. Awesome.
Continued around to northeast corner to discover a set of caves that would sleep 6 comfortably. Great views of Eagletail. Nice smooth redrock.
Headed west through saddle and picked up a game trail that led south to join up with main trail back to truck.
A great off-trail loop. Will return to find "Grey Tank" and spend the night in those caves!