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.

  • p. 5 …passed over the general neighborhood of Socorro, New Mexico, at 8:26 p.m., July 24…
  • p. 10 …Crozier at New Mexico Proving Grounds while working on saboted and proximity fused shells and knew…
  • p. 11 …staff car and driven out through San Antonio, Carthage, and Bingham, New Mexico (this route passing…
  • p. 49 …152 27 Nov 1749 1 R Socorro, New Mexico E to W 100°-400° above horizon…

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

Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI (cont)

Number	Date	Time	Number of Observers	*Reliability of Observers	General Area of Occurrence	Apparent Direction of Flight	Apparent Altitude	Course Horizontal or Vertical	Color	Train or Trail	Duration of Observation	Sound	Apparent Size	Apparent Speed	Manner of Disappearance	**Evaluation
205	1950/22 Mar	0010	3	Unk	Sandia Base, New Mexico	SE to NW Line parallel w/line tangent to the earth	Blue center with orange exterior	None	1$\frac{1}{2}$-3 secs	None	Round like ball from roman candle 1$\frac{1}{2}$ secs 30° azimuth	Burned out	(3)
206	1 Apr	0420	1	R	Los Alamos, New Mexico	S to N	75° above horizon White light	None	1 sec or less	None	Round Disappeared behind building	(3)
207	17 Apr	1530	10	R	Los Alamos, New Mexico 2,000' above horizon	Maneuvered up & down & from side to side	Light green bright as tin foil	None	20-30 secs	None 1/16" at arm's length Gradually went out of sight	(1)
208	20 Apr	1530	1	R	Los Alamos, New Mexico Maneuvered up & down	Bright metallic	None	15-30 mts	None	Roughly circular	Est. 9' in diameter	Faster than conventional aircraft	Lost sight of object	(2)
209	1 May	1510	2	Unk	Kirtland AFB, New	SW to NE	Apparently a few thousand feet	Was angling downward	Silver lucid metallic object	None	Not quite a sec	None	Cylindrical Tremendous	Flash of brilliant white light	(2)

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.