Cottage Grove & Madison, WI, USA
Large and very fast, triangle/boomerang shape with a bright white light in middle and blue and red light blinking
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.
- Duration parsed: 1200s, a plausible sighting length
- Moderate witness text (113 characters)
- Location could not be geocoded
- No other reports from this city within 3 days
- When
- 2017-04-18
- Where
- Cottage Grove & Madison, WI, USA
- Shape
- Triangle
- Duration
- 20 minutes
- Geo
- —
- Slug
- triangle-over-cottage-grove-madison-wi-2017-488305
Part of a wave
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…
In context
- Cottage Grove & Madison, WI shows up 1 times across the archive.
- 88 reports came from Wisconsin in 2017.
- In the 2010s, 8.4% 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.