Project Blue Book Case File
Lake Stevens, WashingtonFebruary 1957
Summary
On February 22, 1957, a civilian at Lake Stevens, Washington, reported a single object. The case was logged under Project 10073, the Air Force's official record for unidentified flying object reports. The object was round, dark, and about three feet across, though one message listed it as eight feet across.
The object was first seen about 1,500 feet high. It was gliding with the wind and went out of sight by gliding away. The exact duration was not given.
Based on the description, the low altitude, the observer, and the way it drifted with the wind, the Air Force concluded the object was a balloon.
Reported location
Lake Stevens, Washington
Date of incident
February 1957
State / country
WA / US
Page count
2 scanned pages
USAF evaluation
unidentified
Microfilm
T1206, Roll 27