I am a 68 year old retired president of an international trade association. My nephew and I were driving on a remote hightway in the mountains of Colorado between Durango and Pagosa Srings, Coloradoat 11:45 PM. This is a secluded stretch of highway where the mountains come down to the road on both sides. My 23 year old nephew who is an areonautical engineer was driving while I was keeping a lookout for elk on the highway. All of a sudden, the highway above and ahead of us for several hundred yards was lit like with street lights, although the light was indescribably soft and misty. It did not alarm us. Knowing this stretch of the road I knew there were no highway lights but accepted them and then looked up through the windshield to see their source. There was a car coming from the opposite direction about a quarter mile away. As I looked up through the windshield, I saw a huge round disc like soft light with grey metalic material surrounding it. Then, I looked down the road above us and was able to count seven similiar lights. They seemed to be approximately 40-50 ft. in diameter and about 100 feet above us. I had just finished counting the lights when the object disappeared in a beautiful curving motion. I then looked up in the clear dark sky and saw the object which in a split second went from something that seemed 400-500 yards long to a tiny two inch object way up in the sky where all we could see were the row of lights. Then it disappeared.