CaseCircle1997
Alta Loma, CA, USA
Very bright circular object about 1500 to 2000 above ground level very slowly moving to the southwest.
Report quality: Moderate51/100
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: 3600s, a plausible sighting length
- Moderate witness text (102 characters)
- Location geocoded exactly
- No other reports from this city within 3 days
- When
- 1997-09-10
- Where
- Alta Loma, CA, USA
- Shape
- Circle
- Duration
- 60 minutes +
- Geo
- 34.122, -117.598 · exact
- Slug
- circle-over-alta-loma-ca-1997-6559de
Wave
Part of a wave
The Phoenix Lights
Arizona, USA (Phoenix–Prescott–Tucson corridor)
The largest mass sighting in modern U.S. history — actually two events: an enormous silent V of lights (many insisted one solid craft blotting out stars) crossing the state around 8pm, and a string of stationary lights…
In context
- Alta Loma, CA shows up 7 times across the archive.
- 152 reports came from California in 1997.
- In the 1990s, 6.7% of reports described a circle — the all-time rate is 10.6%.
Report
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.