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.
274 cases in CA · page 5 of 5
Ontario, CA
1952 · unidentifiedOn August 22, 1952, at about 1500 (3:00 p.m.) Pacific time, a 19 year old private pilot near Ontario, California, reported an unidentified object. He was flying a Cessna 140 that h…
Redding, CA
1952 · unidentifiedIn August 1952, civilians at Redding Municipal Airport in California reported seeing seven or eight objects flying in a straight line at very high speed. The observers watched the…
Richmond, CA
1952 · unidentifiedIn August 1952, an observer in Richmond, California reported seeing a round, orange object that circled overhead and then faded into darkness. The sighting lasted about thirty seco…
Riverside, CA
1952 · unidentifiedOn September 2, 1952, at 11:45 p.m. Pacific Daylight time, four civilians in Riverside, California, about nine miles north of March Air Force Base, reported one star-like object. I…
Sacramento, CA
1952 · unidentifiedOn September 3, 1952, observers at a Ground Observer Corps post near Sacramento, California reported seeing a fast-moving, disc-shaped object with a dark line through its middle. T…
SAN DIEGO, CA
1952 · unidentifiedOn December 17, 1952, several U.S. Naval employees reported seeing objects over San Diego, California. The sightings happened in the afternoon, between about 3:15 and 3:25 p.m. The…
Sonoma, CA
1952 · unidentifiedOn August 28, 1952, observers at a Ground Observer Corps post in Sonoma, California, reported seeing five flat, silver-colored objects in the sky. The sightings occurred over rough…
Stockton, CA
1952 · unidentifiedOn May 22, 1952, a group of about eight people at the Stockton Naval Supply Station in California watched a bright silver, rectangular object hang motionless in the sky for 25 minu…
WOODLAND HILLS, CA
1952 · unidentifiedOn the evening of December 11, 1952, an engineer at North American Aviation's Santa Susanna Rocket Test Laboratory in Woodland Hills, California, witnessed an unusual object in the…
Claremont, CA
1951 · unidentifiedOn the evening of September 6, 1951, two U.S. Air Force officers traveling by automobile on Highway 66 near Claremont, California witnessed an unusual formation of orange lights in…
Hollywood, CA
1951 · unidentifiedOn the evening of September 6, 1951, a woman standing on a sidewalk in Hollywood, California saw two glowing red objects appear in the southwestern sky near the moon. She watched a…
Long Beach, CA
1951 · unidentifiedOn September 23, 1951, four F-86 fighter jets scrambled from George Air Force Base in response to a report of an unidentified object spotted at 50,000 feet over Long Beach, Califor…
Los Angles, CA
1951 · unidentifiedIn November 1951, a Los Angeles resident reported seeing a large, unusual object hovering directly overhead for about three minutes. The witness described the craft as roughly 400…
Lucerne Valley, CA
1951 · unidentifiedOn February 6, 1951, near Lucerne Valley, California, two civilians reported strange objects in the afternoon sky. The witnesses, a structural draftsman and his wife, first saw two…
McClellan AFB, CA
1951 · unidentifiedOn March 13, 1951, near McClellan Air Force Base, California, an Air Force officer and his wife reported a strange object at about 1520 (3:20 p.m.). While driving on a road near th…
Mojave, CA
1951 · unidentifiedIn November 1951, witnesses in Mojave, California reported seeing a circular object about 30 feet in diameter and 8 feet thick. The object appeared in the southeast with a vivid bl…
Riverside, CA
1951 · unidentifiedIn the early morning of November 28, 1951, Leo Swenson, an illustrator at Northrop Aircraft, was driving alone on Highway 91 between Colton and Riverside, California, when he spott…
Hamilton AFB, CA
1950 · unknownOn June 21, 1950, at about 1:38 a.m., observers at Hamilton Air Force Base, California, reported a fast object in the sky. The case is part of Project 10073, the Air Force's offici…
San Francisco, CA
1950 · unknownOn February 7, 1950, a sighting was reported in the San Francisco, California area. A single object was observed from the ground for 10 minutes. The object was described as conical…
Catalina Island, CA
1949 · unidentifiedOn April 28, 1949, a civilian on Catalina Island, California reported seeing six objects in the sky. According to the report, the objects did not travel together. Each one flew by…
Fairfield Suisun AFB, CA
1949 · unidentifiedOn the morning of July 18, 1949, several military personnel at Fairfield Suisun Air Force Base in California spotted what they described as flying saucers moving at extremely high…
Fairfield-Suisun AFB, CA
1949 · unidentifiedEarly on the morning of July 16, 1949, several Air Force personnel stationed at Fairfield-Suisun Air Force Base in California observed a strange glowing sphere in the sky. At appro…
Glendale, CA
1949 · unidentifiedOn June 17, 1949, at about 3:30 p.m., a driver near Glendale, California noticed something bright catching the sunlight. The observer was traveling by car in the Glendale area, rou…
Lebec, CA
1949 · unidentifiedIn September 1949, two sergeants flying a small private aircraft near Lebec, California spotted an oval, metallic object moving at high speed. The object rose steeply from the foot…
Los Angeles, CA
1949 · unidentifiedOn April 8, 1949, at around 1400 (2:00 p.m.), three city employees in the Los Angeles area observed an unusual object in the sky. The witnesses worked for the City Park and Recreat…
Mt. Palomar, CA
1949 · unidentified# Mt. Palomar Observatory, November 1949 On October 14, 1949, an astronomer at Mt. Palomar Observatory in California saw a formation of 16 to 18 shiny objects flying northwest at…
Sacramento, CA
1949 · unidentifiedOn the night of August 31, 1949, two U.S. Air Force officers stationed at Mather Air Force Base near Sacramento, California, witnessed an unusual aircraft near their homes about fi…
Sacramento, CA
1949 · unidentifiedOn July 16, 1949, at about 1420 (2:20 p.m.), a civilian Air Force police officer at McClellan Air Force Base near Sacramento, California, reported seeing an object. He gave the rep…
San Bernardino, CA
1949 · unidentifiedOn the afternoon of April 7, 1949, two U.S. Air Force pilots in a T-6 training aircraft near Riverside, California spotted an unusual object while flying a radio range practice rou…
Sandberg Pass, CA
1949 · unidentifiedOn February 28, 1949, a U.S. Air Force Reserve pilot was flying a P-11 aircraft near Sandberg Pass, about forty miles south of Bakersfield, California, when he observed an unusual…
San Francisco, CA
1949 · unidentifiedOn Monday, August 1, 1949, several witnesses aboard a commercial fishing boat near San Francisco saw unusual objects in the sky. The sightings occurred in two separate waves as the…
San Simeon, CA
1948 · unidentified# San Simeon, California, September 1948 In late September 1948, a security guard at San Simeon, California reported witnessing an unusual aerial object near the estate known as "…
Bakersfield, CA
1947 · unidentifiedOn June 14, 1947, a civilian observer in Bakersfield, California reported seeing ten objects flying in a loose V formation at low altitude. The observer, who was relaxing in his fr…
Oakdale, CA
1947 · unidentifiedOn July 7, 1947, a civilian in Oakdale, California reported observing an unidentified object at 1:50 p.m. The silver-colored object was about the size of an aircraft at a distance.…
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