UFOMYST
CaseTriangle2004

Sonora, CA, USA

Triangular Object with Lights over Lyons Bald Mountain in Sonora, CA Caught on Video

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: 300s, a plausible sighting length
  • Moderate witness text (84 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2004-05-31
Where
Sonora, CA, USA
Shape
Triangle
Duration
5 minutes or so
Geo
37.984, -120.382 · exact
Slug
triangle-over-sonora-ca-2004-1d61c1
Wave

Part of a wave

  • Historical wave2004

    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…

    Open wave →
Local cluster

Local cluster

Sonora, CA logged 3 reports in the single month of May 2004.

In context

  • One of 30 documented reports from Sonora, CA in the UFOMYST archive.
  • California logged 568 sightings in 2004.
  • Triangle sightings ran at 10.1% during the 2000s (archive average: 9%).

Nearby in space & time

within 30 days

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.