Case Credibility Rating System
★★★★★ Very Low
★★★★★ Low
★★★★★ Moderate
★★★★★ High
★★★★★ Exceptional
Primarily anecdotal, anonymous or unverifiable witnesses, story surfaced long afterward, little/no contemporary documentation, serious inconsistencies, or evidence of fabrication.
Identifiable witness or source, but evidence is weak. Limited corroboration, secondhand reporting, questionable documentation, or plausible conventional explanations significantly weaken the case.
Credible identifiable witnesses and reasonable documentation. Some independent corroboration may exist, but important uncertainties remain or conventional explanations cannot be confidently excluded.
Multiple credible or independent witnesses, strong contemporary documentation, and/or supporting photographic, radar, physical, military, police, or scientific evidence. Conventional explanations have been investigated but remain inadequate or disputed.
Exceptionally well-documented case involving multiple independent sources and several mutually supporting forms of evidence. Records have strong provenance, major details are independently corroborated, and extensive investigation has failed to produce a convincing conventional explanation.
United States of America
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii
Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan
Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico
New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina
South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming
American Samoa District of Columbia Guam Northern Mariana Islands Puerto Rico U.S. Virgin Islands
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Alabama
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Alaska
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Arizona
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Arkansas
Mystery Airship - April 20, 1897 - Miller County
Airship Encounter - May 6, 1897 - Ouachita Mountains
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California
The California Airship Wave- November 17 to December 1896
Salon Sea Airship - June 1 - June 2, 1909 - Imperial Valley and Brawley
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Colorado
Colorado Mysterious Crafts - September 1917 - Salida
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Connecticut
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Delaware
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Florida
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Georgia
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Hawaii
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Idaho
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Illinois
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Indiana
The 1906 Airship Wave - August-October 1906
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Iowa
Mini-UFO Sighting - June 3, 1920 - Mount Pleasant
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Kansas
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Kentucky
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Louisiana
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Maine
The 1808 Camden, Maine sighting - July 22, 1808 - Camden
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Maryland
1910 Maryland Humanoid Encounter - Spring 1910 - Violetville
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Massachusetts
The 1639 Boston Harbor (or Muddy River) Sighting - March 1, 1639
The Boston Harbor Sighting (Second Sighting)- January 18, 1644
The Hallowwen Airship Sighting - October 31, 1908 - Bridgewater
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Michigan
Michigan Mass Sighting - June 29 1913 - Lansing, Michigan, USA
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Minnesota
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Mississippi
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Missouri
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Montana
Bigfork, Montana Airship Sighting - February 9, 1916 - Bigfork
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Nebraska
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Nevada
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New Hampshire
The 1870 Photo - Winter, 1870 - Coös County
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New Jersey
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New Mexico
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New York
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North Carolina
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North Dakota
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Ohio
The Idella Ford Abduction - May 1911 - Piquia, Ohio, USA
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Oklahoma
The 1906 Airship Wave - August-October 1906
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Oregon
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Pennsylvania
John Boback's Sighting - October 1917 - Youngstown
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Rhode Island
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South Carolina
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South Dakota
The 1906 Airship Wave - August-October 1906
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Tennessee
The Tennessee Airship Encounters - April 20 - 28, 1907
1910 Chattanooga, Tennessee Sighting - January 13, 1910 - Chattanooga
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Texas
The Aurora, Texas, UFO incident - April 17, 1897 - Aurora
Texas Shadows - April 8, 1913 - Fort Worth
Silbie Latham Tiny Humanoid Encounter - 1913 - Farmersville
The Rich Field Airfeild Sighting - August 21, 1918 - Waco
Texas Gulf Coast Disc Sighting - October 1920 - Near Freeport
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Utah
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Vermont
The Woodford–Wilmington UFO sightings - October 1, 1900
The Burlington, Vermont UFO Encounter - July 2, 1907 - Burlington
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Virginia
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Washington
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West Virginia
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Wisconsin
Lake Superior Airship - February 29, 1916 - Superior
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Wyoming
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American Samoa — Territory
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District of Columbia — Federal District
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Guam — Territory
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Northern Mariana Islands — Commonwealth/Territory
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Puerto Rico — Commonwealth/Territory
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U.S. Virgin Islands — Territory