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.

Date	Jan.	Color	Course	Seen From	Seen By
5 Dec 48	1930	Green	NE to SW	Las Vegas, N.M.	Civilian
5 Dec 48	2000	Green	N/S	Albuquerque, N.M.	Univ. of N.M. Student
5 Dec 48	2105	Green	N/S	Near Las Vegas, N.M.	Military Pilots
5 Dec 48	2115	Green	N/S	Las Vegas, N.M.	Civilian
5 Dec 48	2115	Green	N/S	Las Vegas, N.M.	Civilian
5 Dec 48	2115	Green	N/S	Lucy, N.M.	Civilian
5 Dec 48	2127	Green	N/S	East of Albuquerque	Military Pilots
5 Dec 48	2135	Green	N/S	Near Las Vegas, N.M.	Pilots, Pioneer Airlines
5 Dec 48	2200	Green	N/S	Near Las Vegas, N.M.	Civilian Pilot
5 Dec 48	2220	Red-white	NE to SW	Levy, N.M.	USAF Photographer
5 Dec 48	2220	N/S	N/S	Onava, N.M.	Railway Worker
5 Dec 48	2315	Green	N/S	Near Las Vegas, N.M.	Univ. of N.M. Student
6 Dec 48	2255	Green	N/S	Sandia Base	AEC Security Agent
7 Dec 48	2145	Green	N/S	Los Alamos	AESS Inspector
8 Dec 48	1835	Green	N/S	Near Las Vegas, N.M.	OSI Personnel
12 Dec 48	2102 Note 1
12 Dec 48	2102 Note 1
13 Dec 48	2130	Note 2
13 Dec 48	2215	Green	N/S	20 mi. East of Las Vegas	Civilian
14 Dec 48	0100	Green	N/S	Wagon Mound, N.M.	Civilian
20 Dec 48	2054	Note 2	Note 3
28 Dec 48	0431	White	N to S	Los Alamos	AESS Inspector
6 Jan 49	0310	Green	E to W	Los Alamos	AESS Inspector
6 Jan 49	1730 Note 4
30 Jan 49	Note 5
14 Feb 49	1840	White-Greenish	NE to SW	Near Ganado, Ariz.	Dr. Salsbury
17 Feb 49	Note 6

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.