Shiny sphere, high altitude, moving steadily west before disappearing
Walking westbound on Mayhoffer Singletree trail (approx. 39.957516193973746, -105.19582641562917). Spherical silver/shiny ball appeared to the west, above Eldorado Mountain, seemingly near cloud altitude, moving steadily west (no contrails). Moved in front of very feint clouds, and went dark/black, then promptly disappeared. We stopped and waited for it to appear, but it did not. This did not behave like a plane, nor like a mylar balloon.
Walking westbound on Mayhoffer Singletree trail (approx. 39.957516193973746, -105.19582641562917). Spherical silver/shiny ball appeared to the west, above Eldorado Mountain, seemingly near cloud altitude, moving steadily west (no contrails). Moved in front of very feint clouds, and went dark/black, then promptly disappeared. We stopped and waited for it to appear, but it did not. This did not behave like a plane, nor like a mylar balloon.
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Boulder
USA
2 minutes
2 minutes
40.02
-105.26
sphere
CO
Occurred : 3/28/2021 16:30 (Entered as : 03/28/21 16:30) Reported: 3/30/2021 8:11:47 AM 08:11 Posted: 3/31/2021 Location: Boulder, CO Shape: Sphere Duration: 2 minutes Characteristics: The object changed color
Shiny sphere, high altitude, moving steadily west before disappearing