One of the most interesting discoveries is of the sophisticated solstice markers found on Fajada Butte. Quite by accident, an artist climbing the butte near the winter solstice noticed three rocks placed in a tilted configuration. She noticed that the sun shone through these rocks onto a spiral petroglyph carved into the rock face of the butte. The spiral petroglyph is pierced by dagger shaped shafts of light four times a year at the vernal and autumnal equinoxes and winter and summer solstices. Fajada Butte is a spiritual place now closed to visitors