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204880 sightings reported...
and growing

Aspen, Colorado (United States)

Sighted on Monday 28. September 2015
Reported on
Shape: Sphere | Duration: Undisclosed
Source:

I was photographing fall foliage around Aspen, Co, near Taylor Pass. I didn't notice anything unusual until I was reviewing the pictures at home on a large screen TV later that day. This is an incidental finding that I can't explain. I was out in the wilderness on an ATV several miles from civilization.

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