SkyUnknown

UFO sightings by place

UFO sightings in Colorado: 187 reports

SkyUnknown lists 187 UFO sightings in Colorado, from 1948 to 2023, drawn from official records: Project Blue Book (NARA) for 179 cases and PURSUE (gouvernement des États-Unis) for 8. The busiest year was 1967, with 28 cases.

Of the 8 cases with a conclusion from their source, 0% are explained (with certainty or probably) and 8 remain unidentified.

For the other 179 cases, the source gives no conclusion: Project Blue Book conclusions sit in scanned files not yet transcribed.

Most frequently named places: Denver (34), Colorado Springs (33), Pueblo (10), Englewood (5), and Boulder (4).

cases
187
unidentified
8
period
1948–2023
sources
2
Map of the cases

Notable cases

The most complete records: account of the sighting, conclusion of the official investigation.

Other states

Sightings by decade

8
1940s81
1950s90
1960s8
2020s

All sightings

DatePlaceStatus
2023Colorado Springs, ColoradoUnexplained
2023Colorado Springs, ColoradoUnexplained
2023Colorado Springs, ColoradoUnexplained
2023Colorado Springs, ColoradoUnexplained
2022Colorado Springs, Colorado, U.S.Unexplained
2022Colorado Springs, Colorado, U.S.Unexplained
2022Colorado Springs, Colorado, U.S.Unexplained
2022Colorado Springs, Colorado, U.S.Unexplained
July 1969DenverConclusion not available
August 1968Colorado SpringsConclusion not available
March 1968Near Grand ValleyConclusion not available
January 1968Castle RockConclusion not available
December 19671 Mile NE Of Buckley ANG BaseConclusion not available
October 1967DenverConclusion not available
October 1967Rocky Mountain National ParkConclusion not available
October 1967WeblyConclusion not available
September 1967LakewoodConclusion not available
August 1967Near WestcliffeConclusion not available
July 1967Colorado SpringsConclusion not available
July 1967DenverConclusion not available
June 1967ColoradoConclusion not available
June 1967Ft. LuptonConclusion not available
June 1967Indian-HillsConclusion not available
May 1967North GlenConclusion not available
April 1967Colorado SpringsConclusion not available
April 1967Colorado SpringsConclusion not available
April 1967DenverConclusion not available
April 1967FairplayConclusion not available
April 1967Fort CarsonConclusion not available
April 1967PlazaConclusion not available
April 1967WestministerConclusion not available
March 1967Colorado SpringsConclusion not available
March 1967DenverConclusion not available
February 1967Colorado SpringsConclusion not available
February 1967DenverConclusion not available
February 1967DenverConclusion not available
February 1967EnglewoodConclusion not available
February 1967WheatridgeConclusion not available
January 1967Colorado SpringsConclusion not available
January 1967DenverConclusion not available
December 1966BoulderConclusion not available
December 1966DenverConclusion not available
December 1966EnglewoodConclusion not available
December 1966LakewoodConclusion not available
November 1966Colorado SpringsConclusion not available
October 1966Colorado SpringsConclusion not available
October 1966LongmontConclusion not available
August 1966Colorado SpringsConclusion not available
June 1966Castle RockConclusion not available
June 1966Colorado SpringsConclusion not available
May 1966Colorado SpringsConclusion not available
May 1966Colorado, SpringsConclusion not available
May 1966Fort CarsonConclusion not available
April 1966ArvadaConclusion not available
April 1966Colorado SpringsConclusion not available
April 1966Colorado SpringsConclusion not available
April 1966PuebloConclusion not available
March 1966Colorado SpringsConclusion not available
March 1966Ent AFBConclusion not available
March 1966LaJuntaConclusion not available
March 1966SecurityConclusion not available
October 1965AlamosaConclusion not available
September 1965Colorado SpringsConclusion not available
August 1965Colorado SpringsConclusion not available
August 1965Ent AFBConclusion not available
August 1965Ft CarsonConclusion not available
August 1965Manitou SpringsConclusion not available
August 1965MontroseConclusion not available
August 1965PuebloConclusion not available
February 1965Colorado, Woodland ParkConclusion not available
August 1964Colorado SpringsConclusion not available
August 1964DenverConclusion not available
July 1964Buckley ANQ BaseConclusion not available
July 1964DenverConclusion not available
July 1964DenverConclusion not available
May 1964DenverConclusion not available
May 1964Red Feather LakesConclusion not available
April 1964Denver & Grand JunctionConclusion not available
December 1963SnowmassConclusion not available
August 1962AuroraConclusion not available
August 1962Colorado SpringsConclusion not available
June 1962PuebloConclusion not available
April 1962USAF AcademyConclusion not available
November 1961DenverConclusion not available
July 1961GoldenConclusion not available
October 1960BoulderConclusion not available
October 1960DenverConclusion not available
September 196040 mi E Grand JunctionConclusion not available
September 1960AuroraConclusion not available
September 1960BoulderConclusion not available
September 1960DenverConclusion not available
September 1960EnglewoodConclusion not available
September 1960Grand JunctionConclusion not available
August 1960LittletonConclusion not available
June 1960DenverConclusion not available
June 1960LeadvilleConclusion not available
June 1960LittletonConclusion not available
January 1960DenverConclusion not available
August 1959DenverConclusion not available
June 1959LyonsConclusion not available
March 1959Lowry, AFBConclusion not available
February 1959BoulderConclusion not available
September 1958DerbyConclusion not available
August 19583.5 Mi S Of ArvadaConclusion not available
August 1958DenverConclusion not available
June 1958ClimaxConclusion not available
June 1958North ParkConclusion not available
June 1958PuebloConclusion not available
May 1958DenverConclusion not available
April 1958Lowry AFBConclusion not available
April 1958N of Lowry AFBConclusion not available
March 1958DenverConclusion not available
February 1958Camp CarsonConclusion not available
February 1958Colo SpringsConclusion not available
December 1957Colorado SpringsConclusion not available
December 1957EnglewoodConclusion not available
October 1957KremmlingConclusion not available
September 1957Colorado SpringsConclusion not available
August 1957Peterson Field Colorado SpringsConclusion not available
August 1957PuebloConclusion not available
July 1957LongmontConclusion not available
June 1957Villa GroveConclusion not available
May 1957Near DenverConclusion not available
March 1957Colorado SpringsConclusion not available
March 1957Manitou SpringsConclusion not available
January 1957Glenwood SpringsConclusion not available
January 1957LongmontConclusion not available
December 1956DenverConclusion not available
December 1956HugoConclusion not available
November 1956EnglewoodConclusion not available
November 1956Rocky FordConclusion not available
October 1956Colorado SpringsConclusion not available
October 1956DenverConclusion not available
October 1956PuebloConclusion not available
September 1956Colorado SpringsConclusion not available
September 1956CraigConclusion not available
September 1956DenverConclusion not available
September 1956Ft. CollinsConclusion not available
September 1956PeytonConclusion not available
September 1956PuebloConclusion not available
August 19561 Mi E Of DenverConclusion not available
August 1956Colorado SpringsConclusion not available
August 1956Colorado, SpringsConclusion not available
August 1956CrestoneConclusion not available
August 1956DenverConclusion not available
August 1956DenverConclusion not available
August 1956FountainConclusion not available
August 1956HosperusConclusion not available
August 1956PuebloConclusion not available
August 1956PuebloConclusion not available
May 1956Colorado SpringsConclusion not available
May 1956LimonConclusion not available
May 1956PuebloConclusion not available
December 1955Colorado Springs & DenverConclusion not available
December 1955Colorado Springs, and DenverConclusion not available
December 1955PuebloeConclusion not available
November 1955LavetaConclusion not available
May 1955Colorado SpringsConclusion not available
May 1955ThurmonConclusion not available
April 1955Manitou SpringsConclusion not available
March 1955Colorado SpringsConclusion not available
July 1954DenverConclusion not available
July 1954Lowry AFBConclusion not available
June 1954DenverConclusion not available
April 1954Colorado SpringsConclusion not available
October 1953Lowry AFBConclusion not available
July 1953Colorado SpringsConclusion not available
April 1953Grand ValleyConclusion not available
February 1953Colorado SpringsConclusion not available
December 1952CAMP CARSONConclusion not available
December 1952COLORADO SPRINGSConclusion not available
September 1952DenverConclusion not available
April 1952Colorado SpringsConclusion not available
October 1951Buena VistaConclusion not available
October 1951Four CornersConclusion not available
September 1950DenverConclusion not available
September 1950Kit CarsonConclusion not available
1950Camp CarsonConclusion not available
January 1950DenverConclusion not available
August 1949DenverConclusion not available
August 1949Manitou SpringsConclusion not available
June 1949TiogaConclusion not available
April 1949Colorado SpringsConclusion not available
April 1949DeltaConclusion not available
April 1949DenverConclusion not available
December 1948Monte VistaConclusion not available
September 1948MoffattConclusion not available
Search and filter all cases

The figures on this page are computed from the official records cited on each case. See sources and method