run off road by bright light, Monument Valley UtahRight in the road where the famous Forrest Gump scene where Forrest said, "I think I'll go home now". We were driving south on, I think us 189, at sunset and see a large circular light coming at us. My first thought was a plane was trying to land on the long straight stretch of road. I drove off the road to avoid collision. The light passed silently and disappeared. Unknown if there was loss of time or not. The light seemed to be 100 ft or less off of the ground and traveling in excess of 100mph. I heard no sound and never saw the vehicle.