Now let me start off by saying that this vehicle could very well be a secret military experimental aircraft. here is my story and what i witnessed. i am a truck driver, i was on my way from san bernardino ca to las vegas nv. it was around 11 pm on thursday, february 9th, at that time i was in between baker and primm california heading north on i-15. after some time i had noticed that there wasn't any traffic heading south on i-15 for at least 5 minutes. i just figured that there must be an accident on the other side but a few minutes later as i was cresting a hill here comes the highway patrol with all their lights on driving somewhere between 80-100mph with the military in tow. they were all escorting a single flatbed trailer with an incredible somewhat triangular shaped ufo like vehicle on the trailer. it was much wider than the trailer and had 3 sets of landing gear in which it stood upon. it was also covered in a shrink-wrap like material. it had markings on it but none looked familiar (no american flag or numbers that i could see). the color of the material it was covered in was light grey,dark grey and black. i desperately tried to get my phone out of the car dock to try and get a picture but wasn't fast enough. behind the truck carrying the object was more military vehicles and then about a half mile or so behind them were more state troopers keeping traffic back. i've seen many different ufo pictures and this object was close to being similar to the tr-3 but it's edges were much more rounded and wider. i really wish i could have gotten a picture of it, but then again i'd probably have the military or some men in black paying me a visit.