UFOMYST
CaseTriangle1973

Denver, CO, USA

Very large, boomerang shaped object, silently moving slowly at treetop height East to West with no wind disturbance.

Report quality: Moderate45/100

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.

  • No parseable duration on file
  • Moderate witness text (116 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1973-08-06
Where
Denver, CO, USA
Shape
Triangle
Duration
3-5 miutes
Geo
39.739, -104.985 · exact
Slug
triangle-over-denver-co-1973-f9142a
Wave

Part of a wave

  • Historical wave1973

    The Great 1973 Flap

    United States, strongest in the Southeast and Midwest

    With Blue Book dead, the biggest post-war flap had no official landing place — reports went to police, press, and the new civilian networks (MUFON, founded 1969, came of age here). October 1973 delivered Pascagoula's…

    Open wave →

In context

  • Denver, CO shows up 317 times across the archive.
  • 3 reports came from Colorado in 1973.
  • In the 1970s, 7.9% of reports described a triangle — the all-time rate is 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.