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)
niwot · CO, USA
strange 10+ perfectly diagonal lights over boulder, colorado foothills
Clifton · CO, USA
Strange lights in a straight line
Pueblo · CO, USA
5:30 or 5:40. Saw about 30 lights traveling from west to east. Evenly spaced across the entire visible night sky. Very high up, possibl
Englewood · CO, USA
A saw a few dozen or so single white lights flying slowly in a perfect straight line. Looked about 1,000 ft. in elevation and a few hun
Lafayette · CO, USA
16 Lights following each other in a row
Evergreen · CO, USA
Observed 15-20 white lights evenly spaced apart moving semi vertically in unison in the mountain sky.
Longmont · CO, USA
Line of individual lights in Boulder County
Boulder · CO, USA
Uniform diagonal line of lights slowly moving across sky
Palmer Lake · CO, USA
These flying objects were flown with precision and their flight patterns were perfectly sequenced and it was highly organized.
Silt · CO, USA
After sunset, looking to the West towards Grand Junction, CO we observed a row of lights, perfectly spaced apart, climbing from just ab
Grand Junction · CO, USA
MADAR Node 75
Fort Collins · CO, USA
Large orange fireball
Colorado Springs · CO, USA
Triangular object, white lights, silent but incredibly fast.
Denver · CO, USA
Flashing light in Denver, not plane or helicopter.
Golden · CO, USA
I saw this only the next day as I was looking at the photos I took with my IPhone SE 2020. It must be a glitch in the camera. Could a s
Elizabeth · CO, USA
MADAR Node 34
Grand Junction · CO, USA
MADAR Node 75
Simla · CO, USA
Orange-tinged light faded for 10s and reappeared in slightly different position. No debris trail or noise.
Canon City · CO, USA
Something in the sky, government planes appear to be heading toward it.
Castle Rock · CO, USA
It was a silentl spherical orb of a dark color or transparently distorting the clouds behind it.
Denver · CO, USA
Sighting of unknown rectangle craft,
Wheat Ridge · CO, USA
There was a tiny ribbon of light, surrounded by 7 or 8 tiny dots of light.
Fort Collins · CO, USA
At around 6pm my fiancee and I were out having a smoke when several flying craft way way way up were interacting with one another, very
Crowley · CO, USA
Crowley, CO UFO
Evans · CO, USA
Triangle shape created by 3 bright steady white lights/orbs over Evans, Colorado.