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/Fountain · CO, USA
Witnessed multiple low flying triangular crafts with bright lights outlining its shape. Seen near military base.
Fort Collins · CO, USA
Flashing amber lights in Northen Colorado
Wheat RIdge · CO, USA
Ten to twelve crafts spotted in Wheat Ridge CO at dusk February 12, 2008
Fort Collins · CO, USA
Bright light seen over Northern Colorado foothills
Longmont · CO, USA
((HOAX??)) LONGMONT, COLORADO-MASSIVE TRIANGLE FOR ATY LEAST 1 HOUR
Montrose · CO, USA
Loud humming dark craft passed overhead against a bright cloudy night.
Craig · CO, USA
it was a light that changed colors and hovered in the sky for quite sometime ((NUFORC Note: Possibly Sirius. PD))
Platteville · CO, USA
3 sets of 2 long lights in chevron shape
Florissant · CO, USA
Not an Aircraft, very large, leading edge firy bright , irregular shape, duration of observation -three minutes.
Limon · CO, USA
After noticing a bright light in the sky, I watched it for a while until it vanished.
Canon City · CO, USA
lingering orange lights spotted in sky over Canon City, CO near Prison Facilities
Grand Junction · CO, USA
Lights over Grand Junction Colorado
Denver · CO, USA
White object, ufo, changing shape, moving North of Denver
Boulder · CO, USA
I saw a UFO
Denver · CO, USA
Distant white spheres seen by crowd on college campus
Denver · CO, USA
Crescent shaped object with red, green, and white lights to the east of Denver.
Cortez · CO, USA
bright flas and gone.
Boulder · CO, USA
"W" shaped UFO sighting in Colorado. 500 Lights On Object0: Yes
Burlington · CO, USA
An ear-splitting almost explosion-type burst that left the whole horizon a luminous semi-circle of purple
Colorado City · CO, USA
Bright halogen colored light.
Burlington · CO, USA
Nearing Burlington, CO predawn on Dec 8, 2007 the entire horizon lit up in a huge semi-circular flash of purple
Durango · CO, USA
bright white light slowing moving across night sky.
Boulder · CO, USA
5 large orange circles (looked like fire) that formed circle, then two disappeared and 3 formed a triangle, then disappeared.
Boulder · CO, USA
Seven orange lights in the north sky at night gradually faded away.
Lakewood · CO, USA
Unusually bright light seen next to very bright full moon