Littleton, CO, USA
The object looked onyx black and was floating / flying along the mountain range and then when towards the mountains. The object looked
Report quality: Moderate65/100
This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.
- Duration parsed: 30s, a plausible sighting length
- Detailed witness text (134 characters)
- Location geocoded exactly
- 1 other report from the same city within 3 days
- When
- 2021-05-25
- Where
- Littleton, CO, USA
- Shape
- Diamond
- Duration
- 30 seconds
- Geo
- 39.613, -105.017 · exact
- Slug
- diamond-over-littleton-co-2021-0cc56e
Part of a wave
The Navy Encounters & the UAP Era
U.S. training ranges (Pacific off San Diego; Atlantic off Virginia), then worldwide reporting
The wave that renamed the subject. The USS Nimitz 'Tic Tac' encounter (November 2004: radar drops from 80,000 ft to sea level in seconds, pilot visual by Cmdr. David Fravor, FLIR video) stayed classified-adjacent until…
Local cluster
This sighting is part of a small burst — 4 Littleton, CO reports filed in May 2021.
In context
- Littleton, CO shows up 93 times across the archive.
- 119 reports came from Colorado in 2021.
- In the 2020s, 1.1% of reports described a diamond — the all-time rate is 1.4%.
Nearby in space & time
within 30 daysReport
Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.