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)
Castle Rock · CO, USA
We saw a very bright white light, looked like the moon setting very quickly.
Boulder · CO, USA
01/11/01 fireball over western skies was different color and headed in a different direction.
Loveland · CO, USA
A large bright blue/green light with a long white tail was traveling south at a fairly fast speed. It was above the horizon, but not a
Pueblo · CO, USA
The picture window in my living room faces almost due north. With the curtains drawn and the room lighted, I saw the outline of a fire
Brush · CO, USA
A bright shooting light.
Thornton · CO, USA
Blue fireball, close to anf falling from sky
Nederland · CO, USA
Great, colorful UFO viewing in Boulder County,on Nov. 11.001 at 11:53 PM.
Fort Collins · CO, USA
Bright greenish/blue ball flying diagonally across sky
Nederland · CO, USA
Great, colorful UFO viewing in Boulder County,on Nov. 11.001 at 11:53 PM.
Cortez · CO, USA
Golden point of light traveling west to east as bright or slightly brighter than a jet liner . NO stobe effect to light . From east end
Aurora · CO, USA
Four unusual lights flying over Colorado Skies
Evergreen · CO, USA
Object was 10x bigger than an aircraft, hovered for approximately 10 minutes before it headed west
Pueblo · CO, USA
Fast moving object in middle of day
Estes Park · CO, USA
As a guest in a friends home, sitting in the living room in a corner chair, I happened to glance out the window to my left and observed
Fort Collins · CO, USA
The ufo was oval with lights on the side
Berthoud Pass · CO, USA
Up close and stealth-like on the backside of Berthoud Pass, Colorado
Denver · CO, USA
Five faint red things in a fast and silent V formation in Denver at 5:52pm on 11/24/00 with no running lights?
Colorado Springs · CO, USA
saw 4 lights going in what i thought was a clover formation
Colorado Springs · CO, USA
THE TRIANGLAR CRAFT WAS OBSERVED NEAR PIKE'S PEAK. I SAW IT FIRST. IT WAS SCANNING THE PEAK WITH ONE OF THREE SEARCHLIGHTS THAT WERE ON
Denver · CO, USA
object behind clouds that looked like full moon but was not. moved to always be behind clouds for six minutes
Commerce City to Henderson · CO, USA
It made no sound and stood in one place over the car, The lights were huge not like a light beam and no flashing lights
Yampa · CO, USA
Two extremely bright star-like lights that flashed vivid red and green.
Vineland · CO, USA
Bright object sited 11-19-00 at approximately 1100. Viewed 15mins. Pulsated NE at not a high rate of speed.
Aurora · CO, USA
Triangular craft (two footbal fields in size)
Greeley · CO, USA
It was large, moved slowly and was silent.