Location of Sighting: Boise, Idaho
Date of Sighting: September 15, 2021
Time of Sighting: 11:55 AM MDT
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Description: I was driving up Bogus Road and just went by the old Horse Corrals Trail Head. I looked of towards the airport to the south and saw in the smoky haze a HUGE looked to be flat black rectangle flag! The smoke made it hard to see any detail as to how thick it was, but it was at least 2 to 3 city blocks high and 5 to 8 blocks long! It hovered and then moved as fast or faster than a jetliner. The road went down a hill and I lost site of it. I started speeding to get to a better vantage point to take a video. I turned that sharp corner and gassed it up the hill. I could see it in my rearview mirror. It was as far south I figure as the airport in Boise. I should have stopped and turned around right away. The slow vehicle vantage point was blocked by a small ridge to the SE. I never saw it again. Did anyone in the Boise, Nampa, Caldwell area see this monster? I thought it might be a plane pulling a huge banner, but it was going too fast for a plane and it was way too BIG. The trailing rear edge didn’t look square at a slight angle and uneven. It flew with a 15 to 20 degree upward tilt to the front of it.