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E-006357LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%

Ivan Sanderson Disc over Delaware Water Gap

October 2, 1958Delaware Water Gap near Blairstown, New Jersey, United States

Zoologist Ivan T. Sanderson reported a disc maneuvering over the Delaware Water Gap, looping back and forth and changing apparent aspect before speeding west.

// LINKED CLASSIFICATIONS:Box / Van / Rectangular(C-000262)→Scientific & Observational Types(P-000101)→
Claims are displayed with the source wording, locator, relationship and verification state. Competing claims remain separate rather than being averaged into a single answer.
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Encounter · Reported Encounter Observation

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CLAIM-689141reported
“Zoologist Ivan T. Sanderson reported a disc maneuvering over the Delaware Water Gap, looping back and forth and changing apparent aspect before speeding west.”
The UFO Evidence
SRC-002107 · Ivan Sanderson Disc over Delaware Water Gap encounter narrative; uploaded PDF pp. 87-87
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SOURCE COMPARISON

Ivan Sanderson Delaware Water Gap Disc (1958) · Hall Phase 04 Source Description

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CLAIM-689140reported
“Sanderson described repeated changes from a thin edge-on view to oval/circular aspect, consistent in his interpretation with a disc changing attitude.”
The UFO Evidence
SRC-002107 · Ivan Sanderson Delaware Water Gap Disc (1958) source description; uploaded PDF pp. 87-87
SUPPORTS
SOURCE COMPARISON

Hall Scientists & Engineers Dossier · Hall Phase 04 Source Description

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CLAIM-689132reported
“Hall opens Section VI by emphasizing reports from professional scientists and engineers and discussing barriers to public reporting.”
The UFO Evidence
SRC-002107 · Section opening and professional-observer discussion; uploaded PDF pp. 81-82
SUPPORTS