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E-009503LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%

Colusa Rotating-Rim Disc and Light-Beam Encounter

September 10, 1976Colusa area, California, United States

Bill Pecha reported a large structured domed disc during a power outage, projected light beams including a reportedly truncated beam, two more distant objects, rapid movements, and later foliage damage.

// LINKED CLASSIFICATIONS:Disc / Saucer(C-000253)→Physical Trace & Environmental Effects(P-000103)→
Claims are displayed with the source wording, locator, relationship and verification state. Competing claims remain separate rather than being averaged into a single answer.
SOURCE COMPARISON

Encounter · Hall Volume II Encounter Claim

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CLAIM-950015reported
“Pecha described a large domed disc with rotating rim and protrusions projecting beams, including a cone of light that initially appeared truncated before reaching the ground.”
The UFO Evidence, Volume II: A Thirty-Year Report
SRC-009500 · September 10, 1976 Colusa case; uploaded PDF pp. 54-55
SUPPORTS
SOURCE COMPARISON

Encounter · Hall Volume II Source Caveat

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SOURCE COMPARISON

Hall Volume II Physical and Instrumental Evidence Framework · Hall Volume II Evidence Claim

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CLAIM-950010reported
“Section I summarizes physical/instrumental evidence as radar tracking correlated with visual observations, ground and foliage traces, physiological effects, electromagnetic effects on vehicles, and photographs.”
The UFO Evidence, Volume II: A Thirty-Year Report
SRC-009500 · What Physical and Instrumental Evidence Is There for UFOs?; uploaded PDF pp. 71-71 · PRIMARY SOURCE
SUPPORTS
Colusa Rotating-Rim Disc and Light-Beam Encounter (September 10, 1976): Evidence Dossier & Witness Reports | ANOMALY | ANOMALY UAP Archive & Controlled Vocabulary