Formation of lights flying over Mogollon Rim area of Northern ArizonaFive of us were sitting around a campfire when to the NorthWest a formation of blue-green lights appeared in the sky. They were moving from West-Northwest headed South at first, and then turned in an Easterly direction. Their formation closely resembled the Big Dipper constellation, but backwards. There were about 16 or so lights, with ten of them in pairs on the front end of the formation. One solitary light tagged behind out of formation, but kept pace and heading with the rest. Their lights never dimmed, blinked, nothing. There was no noise and they seemed to be moving at a constant high velocity.None of us have ever seen a UFO before, but we are all acquainted with most planes, balloons, satellites, etc. This was nothing that we have ever seen before.