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Category Shape / form From year To year Country Time of day Witnesses Evidence Status Duration Sound Colour Motion Lights Sources include Min photos Min videos Min sources Min score Sort order

3D model Narrated

“Alton”

Stories3

Pro early

The Emmerichs Thylacine Photographs

February 2005 · Campsite north-west of Derwent Bridge, central Tasmania (exact spot disputed)

Australia

Cryptid · Creature · 13 sources

24Thinly documented

Pro early

Texas John Huffer Films Thunderbirds at Lake Shelbyville

c. 1977 · Cove near the Findlay marina, Lake Shelbyville, Shelby County, Illinois

United States

Cryptid · Creature · 21 sources · 1 photos

29Thinly documented

Pro early

The St. Louis and Alton Giant Bird Flap (Thunderbird Sightings), 1948

April 1948 · Alton, Illinois, and greater St. Louis, Missouri, with a separate cluster around Caledonia and Freeport, northern Illinois

United States

Cryptid · Creature · 14 sources

28Thinly documented

Names7

Travis Walton Person · 5 stories
Autumn 1975.
Philip J. Klass Person · 32 stories
A sceptic.
Robert Sheaffer Person · 19 stories
A sceptic of the UFO field, and a Skeptical Inquirer columnist.
thunderbird Term · 6 stories
A giant bird.
Curt Collins Person · 5 stories
A researcher and case historian, Curt Collins returns to old flaps and checks them against the original sources.
National Enquirer Organisation · 5 stories
An American tabloid that kept turning up at the edges of famous cases.
Lawndale Place · 3 stories
A small village in Logan County, Illinois.

Documents16 · see all

UFO Reports 2007 Report

Ministry of Defence· 7 pages· 1 page mentions it
- p. 3 …01-Sep-07 21:00 Alton Hampshire Seventeen objects were seen. They looked round, (totally circular) and solid and were…
UFO report 2007 Report

UK Ministry of Defence· 7 pages· 1 page mentions it
- p. 3 …01-Sep-07 21:00 Alton Hampshire Seventeen objects were seen. They looked round, (totally circular) and solid and were…
FOIA Case Log Calender Year 2001-2003 FOIA release

Central Intelligence Agency· 2022-03-03· 113 pages· 2 pages mention it
- p. 1 …MEETINGS WITH CHINESE OFFICIALS CIA REPORT - GLOBAL TRENDS 2015 ALTON GLENN MILLER MAJESTIC 12 ALL RELEASED DOCUMENTS FROM F-1978…
- p. 75 …GONZALES; DR. DONALD W. HASTINGS; DR. WILLIAM HERRMANN; DR. ALTON OCHSNER; DR. SEYMOUR POLLACK; DR. HUBERT WINSTON SMITH; MR JARRARD…
Unidentified flying objects: hearing before the Committee on Armed Forces of the House of Representatives, Eighty-ninth Congress, second session, April 5, 1966 ... Hearing transcript

U.S. House Committee on Armed Services· 1966-04-05· 88 pages· 1 page mentions it
- p. 2 …NEDZI, Michigan ALTON LENNON, North Carolina WILLIAM J. RANDALL, Missouri G. ELLIOTT HAGAN, Georgia CHARLES H. WILSON, California ROBERT L…
NIS Gazetteer Mexico FOIA release

Central Intelligence Agency· 2025-08-25· 757 pages· 2 pages mention it
- p. 11 …N 98 03 W 702 00 ACON, LAGUNA SEE ALTÓN, LAGUNA INTL 18 31 N 89 08 W 702 00…
- p. 31 …POPL 29 26 N 110 25 W 702 02 ALTÓN, LAGUNA INTL 18 31 N 89 08 W 702 01…
U.S. Air Force Analysis of Flying Objects in the United States, 101-172 Report

U.S. Department of War· 210 pages· 1 page mentions it
- p. 80 …Address of observer Weestern Cartridge,Co., Alton; Ill. 7. Place of observation 4 miles north of Alton, Ill - ground. 8…