Sightings recorded by the US-based National UFO Reporting Center (NUFORC), an independent organisation that logs and investigates such cases, have been charted on a map of North America.
Data analyst Adam Crahen plotted all 58,828 reports received by NUFORC for the US from 1995 to 2014 on a map of the US.
The impressive end result shows swathes of green UFO reports spread out across the vast country.
However, it has been suggested the most dense areas for sightings coincide with US military installations.
Alex Hollings, a retired US duty marine, now writes for Sofrep.com, a news and intelligence service provided by former special operations veterans.
He wrote: "When laying that same map of reported UFO sightings over a US map showing the locations of all military installations, an interesting trend starts to emerge.
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