Michigan swamp gas UFO reports
From the UAP Encyclopedia, the open encyclopedia of UFO and UAP history · 🛸 Case
Contents 5
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| Type | Case |
|---|---|
| Also known as | swamp gas, Dexter sightings, Hillsdale sightings |
| On the Timeline | 4 events, 1958–1968 |
The Michigan "swamp gas" UFO reports were a wave of sightings in southern Michigan in March 1966, including two mass sightings near Dexter and at Hillsdale College. When Air Force consultant J. Allen Hynek suggested that some of the lights might have been marsh gas, the explanation was widely mocked, and Congressman Gerald Ford called for a congressional investigation.[1][2]
The wave
On 14 March 1966 Washtenaw County deputies and police reported lights moving at high speed over Lima Township for nearly three hours. Similar lights were reported over the next few days, and a deputy photographed two lights near Milan.[1][2]
On the evening of 20 March, farmer Frank Mannor reported a glowing object over a swamp near his farmhouse outside Dexter. He and his son said they got within about 500 yards of it and described a football-shaped object with a quilted or waffled surface and lights. A Dexter police officer said the object flew over his car on the way to the farm. About 60 people, including a dozen law-enforcement officers, were reported as witnesses, and more than 40 officers searched the swamp.[1][2]
The next night, 87 residents of a Hillsdale College dormitory watched flashing lights over the college arboretum for several hours. The county civil defence director watched through binoculars, and the group took notes as they watched.[1]
Hynek's press conference
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At the request of Michigan congressman Weston Vivian, the Air Force sent Hynek to investigate. Arriving on 23 March, he said he found something close to hysteria and compared the reports to witnesses of a fire, who each give different facts.[2] At a crowded press conference in Detroit on 25 March he suggested that marsh gas could explain the Dexter and Hillsdale sightings, and that a photograph from the earlier wave showed the Moon and Venus.[1]
The explanation was met with near-universal ridicule. On 28 March Gerald Ford, then a congressman from Michigan, called for a thorough congressional investigation of the sightings.[1] On 6 April Hynek testified before the House Armed Services Committee, alongside Air Force Secretary Harold Brown and Blue Book chief Hector Quintanilla. In a statement he said was not dictated by the Air Force, he suggested that some aspects of UFOs deserved serious scientific study.[1]
Legacy
"Swamp gas" became a byword for official explanations of UFOs that people found hard to believe. Hynek later wrote that the phrase became a household word and a humorous synonym for UFOs.[1] Washtenaw County's sheriff at the time, Douglas Harvey, said in 2006 that Hynek had told him privately that there was "something" they could not identify, and announced the swamp gas explanation only after a long phone call to Washington.[1] Hynek later argued that the subject deserved serious study, and in 1968 cited his "swamp gas record" as proof that he was no believer.[1][2]
On the UAP Timeline
- McClellan subcommittee persuaded against hearings (1958) (28 February 1958) — An Air Force general says informal talks persuaded Senate investigators no UAP hearings were needed.
- John McCormack's doubts about the Air Force (1961) (16 February 1961) — House leader John McCormack says the Air Force isn't sharing all it knows about UFOs.
- Gerald Ford's call for UFO hearings (3 April 1966) — Rep. Gerald Ford is told an upcoming UAP study won't be tied to the Air Force.
- Condon Report (15 November 1968) — The Air Force-funded Condon Report concludes that UAP study has added nothing to science.
References
- Michigan "swamp gas" UFO reports — Wikipedia · en.wikipedia.org · archived copy
- Ken Haddad, "'I'll believe this to the day I die': The Michigan UFO craze of 1966", ClickOnDetroit (14 March 2024) · clickondetroit.com · archived copy
This page was last edited on 31 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.
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