I saw 6-8 different orange lights in the sky over Longmont and Boulder area, hold there position for extended period, then move slowlyI live up on a hill where I can see the lights of Longmont, I saw 3 orange lights holding there place, then as I and 2 other witnesses watched, they would flare up then I watched 2 move together, brighten up then move horizontally with the horizon apart from each other. At times the lights would form loose triangles, then slowly move from side to side, going in and out of brightness. I got some binoculars and looked at them. They looked like bright orange lights. I looked towards Boulder and saw 3 more, they held position for a while then started to move horizontally with the horizon. I have been at this location for 7 years and am use to watching planes in the sky, and watch the sky quite often. I have never seen anything like this before. The lights were not too high from the horizon, 1000ft at the most. There was a huge amount of air traffic also occurring during this time from the local small airport. I went inside for a half hour then went back o! ut and they were still doing the same thing. This all occurred over about 2 hours. I took a video with my phone, but it was very poor quality.