[Utah-astronomy] Rocket exhaust cloud?

Currently camping near the Wedge Overlook on the north Edge of the San Rafael Swell, moon has set, almost cloud free perfect sky! But there is quite a curious cloud due north. Takes up about 3 by 5 degrees of sky perhaps, has some linear extensions. The town of Castle Dale could be emitting and illuminating this cloud but it has the very faint and tenuous nature of a mesosphere cloud or rocket exhaust cloud. I'm afraid I can't get a picture. Any one else seeing this? Incredibly beautiful. Happy new moon everyone, Ian