me & a couple of friends went outside to smoke a cigg & we noticed a craft hovering above centennial mt. the colors i saw were blue, red, orange, white,& green. the coloring would get really bright & then dim out. it would move at a slow pace. not to long after that there were a few more crafts in the distance, i couldnt tell the shapes but by the lighting of the objects i knew they were of the same kind of aircraft. we continued to observe these aircrafts until it broke daylight & they disappeard into the light