Shiny sphere, high altitude, moving steadily west before disappearing

EVENT DATE

Mar 28, 2021, 4:30 PM

LOCATION

Boulder, CO, USA

NUFORC FIELDS

Open NUFORC

SHAPE

Sphere

DURATION (NUFORC)

2 minutes(00:02:00)

WITNESSES (NUFORC)

2.0

CHARACTERISTICS (NUFORC)

Changed Colo

NARRATIVE

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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Data provenance: This record originates from the National UFO Reporting Center (NUFORC). The dataset originated from Hugging Face (kcimc/NUFORC).

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