6 sightings of red-orange crafts over Billings Montana July 4th 2011 10pm to 11pmOn the evening of July the 4th approx. 10:15 PM Over the Yellowstone River Myself and my wife both observed from our home red-orange crafts appear in the far south west sky and slowly move and hover over Castle Rock park during the fire works show,there were at least 6 separate crafts that would appear and move slowly then disappear at the cloud to the north-north west and almost instantly reappear to the south west again and again.This event lasted til 11pm.I cannot explain what it was but it was not fireworks or any aircraft I have ever seen,it's movement was smooth and deliberate, 1 craft hovered for 15 minutes before heading into the cloud,which was the only cloud in the sky that night.