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)
Colorado Springs · CO, USA
Strong of flashing red lights across the sky
Castle Rock · CO, USA
I saw a long string of red lights that looked like a formation flight. But the lights were in a straight line and pointed close to a 45
Boulder · CO, USA
8 or so red, blinking lights moving in a straight line above Boulder, CO. ((anonymous report))
Arvada · CO, USA
Very long, perfect string of red lights evenly spaced with no sound moving slowly from east to west
Avon · CO, USA
~15 Vertical flashing red lights headed west in Colorado
Avon · CO, USA
~15 Vertical flashing red lights headed west in Colorado.
Littleton · CO, USA
String of 56 lights, flashing red and white, appearance similar to a plane however there were 56; all equidistant. ((anonymous report))
Colorado Springs · CO, USA
Bright white orb like light moving at high speeds over Colorado Springs
Fort Collins · CO, USA
Very bright white light moving diagonally to ground.
Milliken · CO, USA
I was driving on highway 257 west into Milliken and noticed 3 VERY bright lights. They were far too bright to be airplanes.
Aurora · CO, USA
The lights always seem to make all the neighborhood dogs bark. ((NUFORC Note: Possible sighting of a planet?? PD))
Colorado Springs · CO, USA
Unusual object that seemed to change color Andrew sose
Eagle · CO, USA
I live in Eagle, CO. 12 miles East of Eagle-Vail airport. Eagle, CO. is 6600 ft above sea level. My living room faces N.E. and is on th
Parker · CO, USA
UFO sighting 12/30/17 over southern suburbs of Denver.
Denver · CO, USA
((HOAX??)) it flew across the sky super fast me and my family saw it clearly ((anonymous report))
Fountain · CO, USA
2 U.S. Army Soldiers SGT's (REDACTED) encountered a craft maneuvering in the sky at the 6 to 8 o'clock of the full moon.
Pueblo (Belmont) · CO, USA
The street light was green and it went black and in the sky there was a lightening electric looking light flash. ((anonymous report))
Lakewood · CO, USA
Two bright hovering lights pulsated and grew brighter before eventually getting dimmer and disappearing. ((anonymous report))
Loveland · CO, USA
5 glimmering stationary objects for 20 minutes and then vanished
Eaton · CO, USA
White light grouping in north sky. ((anonymous report))
Estes Park · CO, USA
Red object moving fast, high, hovering over mountain ridge in CO.
Broomfield · CO, USA
5 lights making shapes.
Johnstown/Loveland · CO, USA
29 craft spotted over 5 hr period.
Delta · CO, USA
Huge low flying craft, mechanical "whooshing" sounds, and a unknown animal-like screech. ((anonymous report))
Royal Gorge · CO, USA
Oval reflective craft.