Documents / Report

UAP Reported at Sandia Base, 1948-1950

U.S. Department of War · 1948 · 116 pages · text by GLM-OCR

This U.S. Department of War release compiles 1949 records tied to Sandia Base, New Mexico. It includes a Sandia Base security inspection reply and a W. D. Crozier letter to Lincoln LaPaz. It also contains Crozier and Seely's report on collecting airborne copper particles after the July 24, 1949 fireball near Socorro, which they judged negative or inconclusive. LaPaz's sixth report on green fireballs disputes parts of that finding, and a Fourth Army report describes unusual lights around the Q Area at Camp Hood, Texas, in March 1949.

From the source:Release of 2026-05-22 Incident: 1948-1950, New Mexico. This file contains 116 pages of documentation from the Armed Forces Special Weapons Program (AFSWP) – the direct, post-World War II successor to the Manhattan Project – and from the U.S. Air Force – relating to a series of sightings and investigations in Sandia, New Mexico, from 1948-1950. This file contains 209 sightings of “green orbs,” “discs,” and “fireballs” reported near the military base. Witnesses reported unidentified anomalous phenomena (UAP) maneuvering, flying out of sight, disappearing, or exploding. The documents also include the results of contemporary investigations into residual copper powder found in some areas where sightings were reported. A few of these investigations became the basis for Project Grudge, which collected reports of unidentified flying objects from various other military installations – also included in this collection.

Read from the scan by GLM-OCR; expect the odd misread word.

Number	Date	Time	Number of Observers	*Reliability of Observers	General Area of Occurrence	Apparent Direction of Flight	Apparent Altitude	Course Horizontal to Vertical	Color	Train or Trail	Duration of Observation	Sound	Shape	Apparent Size	Apparent Speed	Lanner of Disappearance	**Evaluation
35	1949/7 Mar	1810	1	Unk	Window Rock, Arizona	N	40-45° to horizon Red (fire) in center shading to blue at edge	Yes	6-8 secs	None	Ball round-spherical	3' in diameter	200-300 mph	Disintegrated	(1)
36	8 Mar	1836	1	R	Los Alamos, New Mexico	S to N	12,000' to 15,000'	Horizontal	Bright white with greenish tint 1-2 secs	None App 800 mph	Either went out or disappeared behind cloud	(1)
37	8 Mar	1835	1	R	Los Alamos, New Mexico	S to N	4,000 above terrain	Descending at 45° angle	Intense white light aluminum colored Very short	None	Elliptical pointed at ends Slower than twin-en-gined plane	Disappeared behind trees	(1)
38	8 Mar	0103	1	Unk	Camp Hood, Texas	from S 58° E to S 54° E	From 58° above horizon to 54° above	Traveled in arc	Pale white light	Yes None	Round-ish head w/hazy smoke trail (3)

Cases discussed

About this file

Report, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 116 pages are in the text index: search them above, or from the library's search.