UFOMYST
CaseTriangle1978

Grand Rapids, MI, USA

Dark, Black Triangle Craft

Report quality: Moderate48/100

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
  • Brief witness text (26 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1978-07-10
Where
Grand Rapids, MI, USA
Shape
Triangle
Duration
5 Minutes
Geo
42.963, -85.668 · exact
Slug
triangle-over-grand-rapids-mi-1978-9e7911
Wave

Part of a wave

  • Historical wave1977–1978

    Colares & Operação Prato

    Ilha de Colares and the Baixo Amazonas, Pará, Brazil

    The most physically aggressive wave on record. Luminous objects — locals called them 'chupa-chupa' (sucker-sucker) — descended nightly over fishing villages, projecting beams that left burns, puncture marks, anemia and…

    Open wave →

In context

  • One of 121 documented reports from Grand Rapids, MI in the UFOMYST archive.
  • Michigan logged 24 sightings in 1978.
  • Triangle sightings ran at 7.9% during the 1970s (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.