Four marks outside Socorro

The 24 April 1964 record card — Project Blue Book
Document scan. The record card naming Lonnie Zamora and the 24 April 1964 Socorro sighting. PDF page 103 of the collected file; the collection’s first page belongs to a different report.
Public domain
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A police officer’s account led researchers to a small patch of desert. The investigation followed the witness, disturbed ground and the possibility of a vehicle that nobody could identify.

World: Earth
Location: United States
Case date or period: 24 April 1964

A patrol interrupted

On 24 April 1964, Socorro police officer Lonnie Zamora reported something that diverted him from pursuing a speeding car. A loud sound and visible flame drew him towards rough ground outside town. He initially wondered whether he was approaching an accident. His subsequent account described an oval object on the ground, two small figures nearby, and a departure accompanied by noise and flame. The sequence matters because the sighting was interrupted by driving, terrain and changes of viewpoint. A continuous, close observation should not be substituted for those separate glimpses. The surviving case record lets you follow the account back towards the witness instead of starting with a later illustration of an imagined craft.

Who investigated, and when

The report attracted both government personnel and civilian investigators. NICAP and APRO pursued the case, while astronomer J. Allen Hynek travelled to New Mexico as the Air Force’s scientific consultant. His field report opens with a journey to Albuquerque on Tuesday 28 April, followed by interviews and a visit to Socorro the following day. Read that timing against the date of the encounter. Hynek was examining a location that had already drawn officials, reporters and other visitors. His report is valuable precisely because it records what he could inspect several days later, who supplied information, and where his knowledge came from someone else.

Retracing Zamora’s route

Hynek asked Zamora to take him over the route. The officer indicated where he had first noticed the disturbance, where the terrain interrupted his view and where he stopped above the reported landing place. In the report, descriptions of the object are interleaved with distances, the road, the slope and Zamora’s movements. There is an unusually human detail in this reconstruction: Hynek discusses the officer’s glasses, his retreat from the object and which parts of the departure he could actually have watched. Those details affect the confidence we should place in a shape or motion estimate. They also show why a dramatic retelling can become more definite than the contemporary interview.

What remained on the ground

The investigation considered depressions and vegetation said to have been affected at the site. These are physical observations worth examining, but their presence does not identify what produced them. Hynek wrote that visitors had badly disturbed the area and that he could not meaningfully assess the burned ground himself. His additional notes discuss the arrangement of the marks and an apparent discrepancy in their geometry. The report also records a recommendation to mark and protect a future site so investigators could examine it before crowds arrived. This makes Socorro a useful study of evidence preservation as well as a puzzling encounter.

Credibility and explanation are different questions

Hynek took Zamora’s distress and sincerity seriously. He interviewed people who knew the officer and did not think a casual fabrication fitted what he encountered. Yet he also recorded small inconsistencies and wanted checks for military activity or an unfamiliar vehicle. Confidence in a witness did not supply an identified object. The civilian history preserved by NICAP argues strongly that Socorro deserved sustained investigation. Treat that as an investigator’s position, then return to the report pages to see which observations support it. A case can retain unanswered questions without those gaps becoming evidence for a particular origin.

Read the complete field report

The Documents tab contains all eight pages of Hynek’s report in their original sequence, including his additional notes. You can turn pages, enlarge the reader and save a private observation linked to the page you were reading. The Images tab retains the individual scans and the Blue Book record card. The paper shows holes, annotations and imperfect scanning. Those marks belong to the surviving record; none has been removed to make the evidence look cleaner. Distinguish this eight-page field report from the much larger archive file linked with it. Start by comparing Hynek’s first-person observations with the passages in which he is relaying someone else’s account.