USAF · 1947 to 1969

Project Blue Book Case Files

The U.S. Air Force's 22-year investigation into reported UFO incidents, drawn from the National Archives. Each case below has a journalistic summary written from the original file. Use the search box to find a place or date, or filter by state and year.

StateOH 371 CA 274 TX 242 NY 167 FL 110 NM 92 MI 90 WA 89 IL 81 PA 78 MD 73 CO 72

Year1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

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4 cases in CO from 1954 · page 1 of 1

Colorado Springs, CO
1954 · unknown
On April 1, 1954, in Colorado Springs, Colorado, a military witness observed an object traveling north in a straight and level course at extremely high speed. The sighting lasted 1…
Denver, CO
1954 · unknown
On July 9, 1954, military and civilian observers at and near Lowry Air Force Base in Denver, Colorado, watched several small, bright objects moving across the sky at extremely high…
Denver, CO
1954 · unknown
On the night of June 23, 1954, a civilian woman in Denver, Colorado, saw a glowing object while standing in her back yard. The object had swept back wings, like a modern aircraft.…
Lowry AFB, CO
1954 · unknown
On July 9, 1954, military and civilian witnesses near Lowry Air Force Base in Denver, Colorado, reported shining specks high in the sky. The sighting lasted about 35 minutes. Witne…

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1947 51 1948 90 1949 236 1950 167 1951 124 1952 471 1953 326 1954 350 1955 344 1956 417 1957 559 1958 359 1959 268 1960 340 1961 408 1962 346 1963 123

Colorado Springs, CO

Denver, CO

Denver, CO

Lowry AFB, CO