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National UFO Reporting Center
Sighting Report
Occurred : 8/21/2007 09:55 (Entered as : 8/21/07 9:55)
Reported: 8/21/2007 5:17:24 PM 17:17
Posted: 10/8/2007
Location: Denver, CO
Shape: Rectangle
Duration:60 to 90 seconds
Large white rectangular UFO over Denver

I was driving north on Santa Fe Drive. I noticed a large white rectangular object about 5 degrees higher than the highest buildings of downtown. It looked like a large playing card. At first I thought it might be a large banner being pulled behind a plane. But the object was immense, at least 300 feet by 200 feet. I looked for a tow plane but could see none. Plus such a large object could not be towed behind a prop plane. As I watched it slowly moved in an arc. It seemed to be turning to the left from my perspective. As it travelled in the arc, it seems to shrink in size, as if you were to take a playing card and slowly turn the flat edge perpendicular to youself. As it reached the edge, it simply disappeared. I kept watching for it to turn again but it never did. It was simply gone.