Tremonton film
- Date
- 2 Jul 1952
- Place
- About seven miles north of Tremonton, Utah, United States
- Record
- Curated case
- Assessment
- Contested
- Evidence strength
What was reported
Navy photographer Delbert Newhouse, driving with his family, filmed 12 to 14 bright objects milling against a clear sky on 16 mm colour film, and wrote that no aircraft, birds or balloons were seen before, during or after. The Navy's Photographic Interpretation Center concluded by majority that the images were light sources and ruled out birds; the CIA's Robertson Panel in January 1953 rejected that analysis and judged the motions 'strongly to suggest birds'. The PURSUE file (DOW-UAP-D102) shows a February 1953 Air Force memo recommending a public 'balloons or gulls' line while its own lab had found the images brighter than birds, and a 1956 memo claiming 'unanimity' on seagulls that the Navy dissent contradicts. Seagulls in sunlight remain the best-supported reading, but the film alone cannot settle range or size.
What officials concluded
Tentative explanation
Robertson Panel (1953) and Air Force (1955-56): probably seagulls reflecting sunlight; the Navy lab had ruled birds out
Strongest ordinary reading
Seagulls riding thermals and catching the sun, filmed with no reference for range
Evidence profile
- Yes: Visual
- No: Infrared
- No: Radar
- No: Video
- No: Photo
- Yes: Film
- No: Audio
- No: Night vision
- No: Other sensor
- Yes: Civilian
- No: Military aircrew
- Yes: Military ground
- No: Airline crew
- No: Sensor operator
- No: Law enforcement
- No: Scientist
- No: Astronaut
- No: Intelligence official
- No: Other
- Yes: Light only
- No: Orb or sphere
- No: Disc
- No: Triangle
- No: Cylinder
- No: Cube
- No: Other shape
- No: Physiological
- No: Physical trace
- No: Electromagnetic
- No: Sound
- No: Silent
Pentagon files
DOW-UAP-D102, Project Blue Book File on Tremonton Film, Utah, 1952
The Project Blue Book case file on Delbert C. Newhouse's 2 July 1952 16mm color film of 12-14 bright objects near Tremonton, Utah, tracing the Air Force's evolving assessment from initial uncertainty through the Navy Photographic Interpretation Center's 1952-53 analysis (ruling out birds/aircraft/balloons on computed grounds; see D098) to a later 1956 re-analysis crediting the objects to sunlit seagulls, reinforced by comparison footage of seagulls filmed under similar lighting. An internal February 1953 memo recommended telling the press the objects were "balloons or gulls" before any analysis supported it, and discounting both reports as based on "meager data" because "It would be rather poor policy to state that the Navy had made an error" (p. 38). Newhouse himself, interviewed in September 1952, stated no birds, aircraft, or balloons were visible immediately before, during, or after the sighting.
Open the original on war.govDOW-UAP-D098, Film Analysis of Unidentified Objects, 1953
U.S. Naval Photographic Interpretation Center photogrammetric analysis (progress report, 1953) of two films: the 1950 Great Falls, Montana film and the 2 July 1952 Tremonton, Utah film, requested by the Air Force. Using frame-by-frame plotting, luminosity/size correlation, and velocity/acceleration computation (assuming an arbitrary 5-mile object distance), analysts concluded the objects were disc-shaped, 16-98 feet in estimated diameter, moved in a coordinated group along elliptical tracks, and could not be explained as birds, aircraft, or balloons on velocity/acceleration grounds -- while cautioning the underlying distance assumption was unverified and requesting further-resourced study that was not funded.
Open the original on war.govDOW-UAP-D103, Project Blue Book Photo File Relating to Tremonton Film, Utah, 1952
A short Project Blue Book photo file on the Tremonton, Utah incident, consisting of a caption card identifying the case (Delbert C. Newhouse, 7 miles north of Tremonton, 1110 MST, 2 July 1952; 'group of objects milling about in rough formation'; no reference points to estimate speed, distance, or size) and a General Mills Research Laboratories (Minneapolis) photo-lab print, consistent with the manifest's account of investigators contacting General Mills -- the era's main pillow-balloon manufacturer -- to compare imagery. Most of the file's content beyond the caption card is unreadable handwritten/photographic material in the OCR layer.
Open the original on war.govDOW-UAP-D104, Final Personnel Record for Newhouse, Delbert C., U.S. Navy, 1957
The complete, 585-page Navy service ('jacket') record of Chief Warrant Officer Delbert Clement Newhouse (b. 6 May 1913, of Garibaldi, Oregon), covering his 1934-1957 career: enlistment, training as a Photographer's Mate and later commissioning as an officer, wartime and postwar duty assignments, fitness reports uniformly describing him as an excellent/outstanding photographer with average-to-good leadership, and administrative records culminating in a 2 May 1957 change-of-home-of-record letter. The file contains zero references to UFOs, flying saucers, Tremonton, or Project Blue Book anywhere in its text; it exists in the PURSUE release solely to document Newhouse's professional background as the photographer of the 1952 Tremonton film.
Open the original on war.govDOW-UAP-D105, U.S. Air Force Flying Discs File, 1952
A 253-page compiled Air Force Directorate of Intelligence 'flying disc' working file, September-December 1952: routing memos, correspondence with the public, magazine editors, the State Department, and other services. Its centerpiece (pages 26-36) is the primary Tremonton, Utah investigation record: Newhouse's own transmittal letter describing the sighting, a 13-point interview questionnaire, the answers obtained from Newhouse and his family, a request that the Navy independently analyze the film alongside the earlier Great Falls, Montana (Mariana, 1950) footage, and a list of technical questions for the film analysts. The remainder of the file is largely administrative: crank letters (a man claiming to know the saucers' inventor; a paranoid letter about a movie set), a near-miss report of a possible unrelated 'hoax,' an Okinawa 1950 case of an object reported to have fallen into the sea, and Army/Navy coordination on UFO-reporting procedure (AFL 200-5).
Open the original on war.govDOW-UAP-PR159, Historical Film of Reported UFOs, Utah, 1952
The digitized 16mm Kodachrome footage shot by Navy CWO Delbert C. Newhouse on 2 July 1952 near Tremonton, Utah, showing a group of bright airborne objects, one of which detaches and reverses course. This is the Tremonton film reviewed by Project Blue Book. The blurb states the footage's limited detail and lack of fixed reference points prevented a conclusive resolution, and that from 0:55 onward unrelated sewing-equipment demonstration footage appears, suggesting the surviving print is a composite or reused reel of unknown provenance. The blurb notes the film was originally paired with Idaho mountain-scenery footage (used for a tripod/camera-motion control comparison, documented in DOW-UAP-D105) that is not preserved in this digitization.
CIA-UAP-002, Scientific Advisory Panel on Unidentified Flying Objects, Report, 1952-1953
The full record of the CIA-convened Robertson Panel (Jan 14-18, 1953): the panel's report and conclusions, the Frederick Durant meeting-minutes report (the fuller 'Durant Report'), the list of documentary evidence reviewed, personnel, and cover correspondence routing the report to Defense, the Federal Civil Defense Administration, and the White House. The panel concluded UFOs show no evidence of a direct threat to national security or of foreign/extraterrestrial artifacts, but recommended an active 'debunking' and public-education campaign to reduce the burden UFO reports placed on defense communication channels. It reviewed the Tremonton, Utah film in detail and rejected the Navy photo-interpretation lab's 'birds' explanation on several technical grounds while still not accepting the sighting as anomalous.
Open the original on war.gov
Outside sources
- Wikipedia: Robertson Panelen.wikipedia.org
On the map
41.71° N, 112.17° W, plotted at the town or city
Show on the map