← ENCOUNTERS DIRECTORYENCOUNTER-CLAIM PROVENANCE PRESENT
E-009558LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: rangeRECORD COMPLETENESS: 100%
Michigan Police UFO Wave / Dexter-Hillsdale Activity
March 14–24, 1966Dexter/Hillsdale and southeastern Michigan, Michigan, United States
Police logs and Hall’s narrative describe a heterogeneous regional wave involving multiple jurisdictions, fast maneuvering lights/formations and the Dexter/Hillsdale close reports that later became associated with the swamp-gas controversy.
// LINKED CLASSIFICATIONS:Scientific & Observational Types(P-000101)→Historical Flaps & Concentrated Waves(P-000104)→
// PROVENANCE COVERAGE
100% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
1 SOURCES · 1 PRIMARY
Date documented
March 14–24, 1966
Location documented
Dexter/Hillsdale and southeastern Michigan, Michigan, United States
Map coordinates available
Coordinate precision: region.
Catalogue classification linked
2 family link(s), 2 case-specific component(s).
Published citation-backed claims
4 encounter-target claim(s), 4 component claim(s).
Source coverage
1 unique source edition(s); 1 marked primary for at least one claim.
Assessment has encounter-level provenance
4 encounter-target published claim(s) can carry assessment provenance.
This dossier currently depends on a single source edition; independent coverage would strengthen comparison.
// ASSESSMENT METADATA
Stored case-assessment fields
Stored total witness estimate20
Stored verified-report count0
Instrumental evidence flagNO
Official investigation flagYES
// ENCOUNTER LOCATION · OPENSTREETMAP
COORDINATE PRECISION: REGION