Ken Thornton explores mysterious Sego Canyon. Dating from the Archaic period (8,000-1,000 CE) through to when the Fremont people (contemporaries of the Anasazi) lived, the various images found here include those said to depict an ancient encounter with aliens due to a Crash landing. Archaeologists, however, are more certain they illustrate spiritual figures. Since those who drew them are no longer among us, it is really anyone's guess as to what these large-eyed, bulbous-headed figures were meant to represent? Were they merely stylized humans or something more otherworldly?