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)
Trinidad · CO, USA
Shiny object hovering, egg shaped , silver moving back & forth in one spot for about 14-15 minutes at 1:45pm then vanished.
Arvada · CO, USA
We thought we were looking at a kite until it started to move strangly.
Glenwood Spring · CO, USA
two bright non-blinking lights travelling relatively close to one another just vanishing over the mountain.
Aurora · CO, USA
Two fairly bright white lights moving in tandem. ((NUFORC Note: Witness addendum states that object was not Space Station. PD))
Colorado Springs · CO, USA
2 bright white lights seeming connected flying faster than any plane or military craft;.then disappeared. ((NUFORC Note: ISS?? PD))
Denver · CO, USA
Two UFO's seen above Denver sky. ((NUFORC Note: Space Shuttle w/ ISS?? PD))
Parker · CO, USA
Strange lights over eastern Colorado
Denver · CO, USA
Fast moving oval bright orange/amber domed object at low altitude.
Boulder · CO, USA
Strange formations, bright blue/ red / green lights forming in different locations in Boulder.
Denver · CO, USA
Flying object with Triangular shaped aura spotted in Denver
Denver · CO, USA
2 sets of 4 crafts each in V formations completely stationary.
Colorado Springs · CO, USA
Triangular light configuration indicated low flying hover-craft in fog and snow above Powers Blvd.
Gunnison · CO, USA
giant bright white light moves autonomously and travels EXTREMELY fast. SILENT!
Denver · CO, USA
Daylight sighting of unknown object.
Littleton · CO, USA
On April 20, 2007, at approx. 10:00 PM, blueish fireball descends low near downtown Littleton, CO. ((NUFORC Note: Meteor?? PD))
Rifle · CO, USA
I noticed the ground light-up
Fort Collins · CO, USA
Looking towards the mountains (west) from fort collins, co. A large, bright green, spherical object appeared suddenly and proceeded to
Denver · CO, USA
Two lights that appeared connected moving very quickly SW to NE (faster than any commercial plane or military jet) across the sky .
Trinidad · CO, USA
I observed a white light at what appeared to be a very high altitude, moving from West to East at an extremely high rate.
Longmont · CO, USA
Three stationary red/white lights in eastern sky
Englewood · CO, USA
At exactly 10:45 pm,we are going into our building to clean, my husband said stand beside me and we gonna see something in one minute!
Delta · CO, USA
Spotting two UFO's at night, one landing the other taking off, plus one other on the ground the very next day.
Colorado Springs · CO, USA
Air Force fired projectiles of some sort at alien craft and hit them directly, causing all of the craft fired upon to hit the ground.
Fort Collins · CO, USA
On my way to work going North on I-70 from Fort Collins Colorado to Cheyenne Wyoming.Noticed a very bright white light in the dista
Ridgeway · CO, USA
There were nine or ten of these object flying everywhere and seemed to come from the dull star in the West.