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)
Windsor · CO, USA
((HOAX??)) Multicolor lights flashing in thick clump of trees.
Denver (east of; Weld Co.) · CO, USA
Bright Lights Low in Eastern Denver Skyline
Guffey · CO, USA
Large & small fireballs ring in the New Year 2011 in CO
Colorado Springs · CO, USA
Yellow light in Colorado Springs
Arvada · CO, USA
bright orb seen flying over arvada, colorado
Broomfield · CO, USA
Three lights in row.
Broomfield · CO, USA
Bright light in the sky approximately 1/2 the size of a full moon; then a lightning streak and it was gone.
Lafayette · CO, USA
Saw a slow moving craft traveling North to South which had 3 lights (or highly reflective surfaces), 1 on top and 2 below. Had ridges
Longmont · CO, USA
V-shaped craft moving silently, one light at the front, two on either wing.
Fountain · CO, USA
V-Shaped that looked like a cluster of stars.
Parker · CO, USA
This object was a oval object that looked black, very thin, very fast, and had blue, green, red, and white lights all around it
Aurora · CO, USA
Alien report. ((NUFORC Note: We cannot confirm that this is a sincere report. Source remains anonymous. PD))
Bailey · CO, USA
we are watching the crafts for hours, they stayed in the same place, then disappeared.
Northglenn · CO, USA
circular craft that strobed different collors
Denver · CO, USA
A Ufo Came twards me and another waiter in denver co at my night Job it was scary we saw it clearly and it flew back into space
Littleton · CO, USA
black triangle craft over littleton hospital,Colorado very large and quiet also hovering
Pueblo · CO, USA
Red flash of light in the sky
Greeley · CO, USA
One saucer shaped metal object over Greeley, Colorado.
Boulder · CO, USA
Bright lights seen pulsating over east Colorado.
Thornton · CO, USA
Large Cone-Tailed Ball of White Light crosses Denver Sky
Greeley · CO, USA
round metal ball haning north west of Greeley
Daniels Park · CO, USA
bright light slowly zig zagged then flew over and multi colored lights exposed to jet over denver metro
Boulder · CO, USA
Bring blue light seen traveling across the south western sky at high speed.
Rangely · CO, USA
Two objects, one trailing the other, extremely high altitude (looked like two satellites). As bright as Sirius.
Grand Junction · CO, USA
floating lights over colorados westen slope