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)
Pueblo West · CO, USA
Red lights that were hovering in the north. 2 came first moving north to south. Appeared to hover in the sky.
Aurora · CO, USA
Rocket shaped UFO flying near Buckley AFB.
Grand Junction · CO, USA
3 crafts flashing bright colors over western sky.
Parker · CO, USA
At least 3 different yellowish lights seeming stationary only to rapidly change colors/Alt. at (high) rates of speed.
Rifle · CO, USA
UFOS filmed going in and out of tube in clouds
Boulder · CO, USA
Boulder, CO, Fireball
Lakewood · CO, USA
5 strange bright lights lined up in the sky over Lakewood Colorado.
Boulder · CO, USA
It moved fast and not easy to see ..
Boulder · CO, USA
4 orange lights hovering above/near Rocky Flats former nuclear weapons plant.
Fort Collins · CO, USA
Circle, multi color, zig and zag but stayed in the same area of the sky.
Boulder · CO, USA
Triangle of 3 lights - 2 minutes visable
Boulder · CO, USA
Boulder CO Triangle/Chevron Object.
Pueblo · CO, USA
Multicolored flashing ball of light (disco-ball). ((NUFORC Note: Possible observation of the star, Sirius, we suspect. PD))
Divide · CO, USA
Two big bright spheres floating around over mountains
Fort Collins · CO, USA
Neon Green Flash Crashes South of Fort Collins.
Pueblo · CO, USA
Huge smoke like trail going across the sky
Grand Junction · CO, USA
Night time. Large triangle w/3 lights sighted hovering 75 ft over ground. Banked and flew fast over city, lost altitude then vanished
Mancos · CO, USA
Unidentified tracks near 5 households appear overnight
Fort Collins · CO, USA
A "V" formation of 5 faint solid lights flies over Fort Collins heading west.
Longmont · CO, USA
I saw 6-8 different orange lights in the sky over Longmont and Boulder area, hold there position for extended period, then move slowly
Thornton · CO, USA
Giant Teardrop UFO flies down toward Thornton Colorado.
Widefield · CO, USA
My daughter and I both know the bright moving lights lined up some turned red , some lined up could not be planes or stars.
Colorado Springs · CO, USA
Falling bright light
Longmont · CO, USA
Two sets of faint orange lights appering to each be silently flying in v formations
Denver · CO, USA
Dark, silent object moving slowly over Denver.