UFO Sightings in Colorado
3,016 UFO sightings reported in Colorado since 1931, peaking in 2020 (226 reports); most often described as light.
- Total sightings
- 3,016
- Span
- 1931–2022
- Peak year
- 2020 (226 reports)
- Dominant shape
- Light
1931–2022 · peak 2020 (226 reports)
Top cities in Colorado
Denver
1954–2022 · peak 2014 (27 reports)
Colorado Springs
1956–2022 · peak 2014 (25 reports)
Fort Collins
1963–2021 · peak 2018 (14 reports)
Boulder
1969–2021 · peak 2013 (9 reports)
Aurora
1962–2021 · peak 2016 (10 reports)
Grand Junction
1989–2022 · peak 2020 (29 reports)
Longmont
1978–2021 · peak 2013 (10 reports)
Littleton
1965–2022 · peak 2002 (7 reports)
Pueblo
1995–2021 · peak 2020 (12 reports)
Lakewood
1969–2022 · peak 2014 (7 reports)
Loveland
1988–2022 · peak 2005 (6 reports)
Arvada
1959–2021 · peak 2016 (8 reports)
Westminster
1971–2021 · peak 2013 (5 reports)
Greeley
1998–2021 · peak 2016 (11 reports)
Thornton
1997–2021 · peak 2015 (5 reports)
Englewood
2001–2020 · peak 2004 (7 reports)
Estes Park
1954–2021 · peak 2019 (12 reports)
Highlands Ranch
1998–2022 · peak 2013 (4 reports)
Golden
1975–2020 · peak 2017 (4 reports)
Broomfield
1998–2020 · peak 2016 (5 reports)
Boulder · CO, USA
Steady, long streak of green light emanating waves and modulations of light ,fading and brightening for over one hour under and thru t
Denver · CO, USA
Triangular shaped object with a large round light on what appears to be the bottom.
Lakewood · CO, USA
Observer 1 was outside and saw three oval shaped lights going in a diagonal circle. One of the lighted ovals disappeared and then came
Denver · CO, USA
Light objects appearing over North Denver in a triangle formation.
Denver · CO, USA
3 orange spheres.
Denver/Aurora · CO, USA
Star-like lights moved together over Air Force base in a V formation, then suddenly began to separate and then just go dark.
Georgetown · CO, USA
Captured in photograph in sky between mountains on Georgetown Loop Train Ride 3 circles in triangle formation with bright centers
Gunnison area · CO, USA
Headed west on Highway 50. About 16 miles east of Gunnison CO saw large circular white light to the S, headed W at about 60 mph.
Como · CO, USA
Flickering red, white, green and blue lights over Como Colorado
Boulder · CO, USA
Erratically moving, reddish glowing sphere seen from West Boulder to the North East
Boulder · CO, USA
Triangle, Slow, Blue, Long, Tubular shape objects stuck out of the back.
Cedaredge · CO, USA
Bright white light, faster than a satellite and much slower than a meteor, which faded and disappeared.
Thornton · CO, USA
More than 10 lights moving at supersonic speeds, blinking, erratic changes of direction, almost fluid like motion with bursts of speed.
Colorado Spring · CO, USA
We thought it was a star for the past ten minutes then start descending slp Owly and then it took a right turn and it hovered over the
Colorado Springs · CO, USA
Bright orange objects floating near NORAD.
Larkspur · CO, USA
Orange saucer like object bobbing in night sky, running lights all around perimeter.
Parker · CO, USA
Bright orange light seen moving slowly in sky then disappears!
Johnstown · CO, USA
3 white circle objects.
Johnstown · CO, USA
Brilliant flashing light giving off a star affect traveling at an incredable rate of speed, from north to south
Parachute · CO, USA
Sphere shaped half moon object gliding across the sky.
Commerce City · CO, USA
Triangle shape,,,changing colors,,,then broke into 3 orbs.
Denver · CO, USA
Triangular light formation over Denver on the 4th.
Broomfield · CO, USA
We were observing the fireworks from my roof. There were 3 adults there and we looked over toward Northglenn from Broomfield and then
Castle Pines · CO, USA
3 bright white lights in triangular shape seen over Denver
Aurora · CO, USA
4th of July 2013 at 9:40pm Aurora, Co. 3 orange circles during firework seen by 4 people duration about 5 minutes