UFOMYST
CaseDisk1989

Utah/Idaho border north of Tremonton Utah, UT, USA

I saw a six story high, one block long flying saucer sitting on the Utah/Idaho border that silently disappeared when my car approached.

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: 900s, a plausible sighting length
  • Detailed witness text (135 characters)
  • Location geocoded approximately
  • No other reports from this city within 3 days
When
1989-04-01
Where
Utah/Idaho border north of Tremonton Utah, UT, USA
Shape
Disk
Duration
15 minutes
Geo
40.984, -90.488 · fallback
Slug
disk-over-utah-idaho-border-north-of-tremonton-utah-ut-1989-386d43
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Next caseDisk · Wataga (near), ILsame disk · 18 km · same year
Wave

Part of a wave

  • Historical wave1989–1991

    The Belgian Triangle Wave

    Belgium (Eupen, Wallonia, Brussels corridor)

    The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

    Open wave →

In context

  • One of 1 documented reports from Utah/Idaho border north of Tremonton Utah, UT in the UFOMYST archive.
  • Utah logged 3 sightings in 1989.
  • Disk sightings ran at 14.3% during the 1980s (archive average: 5.9%).

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.

End of report

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