UFOMYST
CaseChanging2011

Yellowstone National Park, WY, USA

MANY SMALL & ONE LARGE OBJECT SITED OVER YELLOWSTONE NATIONAL PARK

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: 200s, a plausible sighting length
  • Moderate witness text (66 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2011-09-20
Where
Yellowstone National Park, WY, USA
Shape
Changing
Duration
3 MIN 20 SEC
Geo
44.428, -110.588 · exact
Slug
changing-over-yellowstone-national-park-wy-2011-3725be
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…

    Open wave →

In context

  • One of 7 documented reports from Yellowstone National Park, WY in the UFOMYST archive.
  • Wyoming logged 21 sightings in 2011.
  • Changing sightings ran at 2.4% during the 2010s (archive average: 2.5%).

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.