Case · C-104
Western United States: silent black triangle seen by federal agents
Western United States, observation posts at a sensitive site (location not disclosed; position on the map is approximate) · United States · Jun 2026
In flight Police Instruments
Unexplained
- What happened
- One evening in June 2026, federal agents at two observation posts reported a matte black triangular craft, with an estimated span of roughly 3 to 4.5 meters, that rose vertically above a ridge, hovered for about twenty seconds and then moved away at high speed, slipping into a canyon, without any noise; in the thermal monocular it appeared at a uniform temperature, with no localized heat sources. The next morning a site inspection of the canyon found no debris or traces. The AARO memorandum and the statement collected by the FBI, published on October 23, 2026 in the seventh PURSUE series, differ on some details, such as the time and duration of the observation.
- Proposed explanation
- No published assessment: the AARO memorandum records the witnesses' account and warns that it reflects their interpretation at the time of the event.
- Official investigation
- AARO (Department of War); FBI
- Words of the document
This report reflects the reporter's interpretation at the time of the event.
Official documents
- AARO Witness Debrief: Unidentified Anomalous Phenomena (UAP) Observation, 2026 – Memorandum for Record (DOW-UAP-D176) · AARO, Office of the Under Secretary for Intelligence and Security (PURSUE, The Black Vault copy) · 2026
- FD-302, Unidentified Aerial Object Observation Report, 2026 (FBI-UAP-D043) · FBI (PURSUE, The Black Vault copy) · 2026
Sources
- EarthSky, “Pentagon UAP files part 7: Silent black triangles”, October 25, 2026 (press)
- UAP Browser – UFO Files Release 7 (release page) (unofficial aggregator; AI-generated summaries) (other)
On this site
Timeline 1
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