Very cool pictographs on the rock ceiling of an alcove at another location about 25 miles from the ruins visited on this same trip. These were about 10 feet above the alcove floor. All in @MountainMatt territory. Note that there are 13 turtles around the circumference of the circle. I found this on the internet "Most years have 12 Full Moons, 1 each month. However, our calendar is not perfectly synchronized with astronomical events. Therefore, every now and then, a year has 13 Full Moons. "