UFOMYST
CaseTriangle1997

Sioux City, IA, USA

the 4 of us saw a totally black triangle shaped object with no lights or sound fly over head blackining the stars out.

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: 8s, a plausible sighting length
  • Moderate witness text (118 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1997-08-17
Where
Sioux City, IA, USA
Shape
Triangle
Duration
7-10 sec
Geo
42.500, -96.400 · exact
Slug
triangle-over-sioux-city-ia-1997-d2e885
Wave

Part of a wave

  • Historical wave1997

    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…

    Open wave →

In context

  • One of 35 documented reports from Sioux City, IA in the UFOMYST archive.
  • Iowa logged 4 sightings in 1997.
  • Triangle sightings ran at 11.6% during the 1990s (archive average: 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.