My 14 year old daughter, and I was driving west on west 500 north about 4 miles west of Fillmore UT. It is very dark on this road, and has minimal traffic. I have seen odd lights in the sky driving west on this road at night before so I always watch the sky when driving here. I saw a strange colored object in the sky over the Cricket mountain area. It was very bright. I asked my daughter if she saw the light, and she said that she did. We watched the object for about 20 minutes. It hovered, ascended, descended, and the color of the light changed between a red color, orange color, and a yellow color very fast. We watched it until it seemed to shoot down to the ground and disappear. We were several miles from the light, and could see the light clearly. We could not make out a shape, or any other features. I have seen strange lights in the sky over the west desert here before, but never had a witness with me. I kept quiet because without a witness there was no proof. I would be happy to detail these also. I would like to find out what these lights are from.