CaseTriangle2009

Rapid City, SD, USA

Triangular object over Rapid City

Report quality: Moderate58/100

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: 270s, a plausible sighting length
  • Brief witness text (33 characters)
  • Location geocoded exactly
  • 1 other report from the same city within 3 days
When
2009-05-18
Where
Rapid City, SD, USA
Shape
Triangle
Duration
4-5 minutes
Geo
44.081, -103.231 · exact
Slug
triangle-over-rapid-city-sd-2009-fb171c
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…

Local cluster

Local cluster

May 2009 was a busy month for Rapid City, SD: 3 separate reports.

In context

  • This is one of 43 reports logged in Rapid City, SD.
  • This case is one of 13 South Dakota reports filed in 2009.
  • Triangle craft made up 10.1% of 2000s reports, vs 9% across the whole archive.

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.