Archival rendering of Jack Peterson's 1952 reported encounter near June Lake, California, preserved through the Shaver Mystery fanzine Shavertron.
THINK ABOUTIT UFO|ENTITY ENCOUNTER REPORT
1952 June Lake, California Humanoid Encounter:
Jack Peterson and the Shavertron Account
Sometime in 1952, near June Lake in California’s Eastern Sierra, a man named Jack Peterson reported watching a cone-shaped device push up out of the ground itself, release a small humanoid figure, and then take the being back inside and sink back into the earth. No aerial approach, no departure into the sky — the craft’s entire reported trajectory was vertical, straight into and out of the ground. The account survives today through a single secondary source: issue #14 of Shavertron, the long-running fanzine devoted to chronicling the “Shaver Mystery” and its underground-world claims.
Date: 1952
Sighting Time: Undocumented
Day/Night: Undocumented
Location: June Lake, Mono County, California (site’s legacy title references “Lake June,” a naming discrepancy — see Editor’s Note above)
Urban or Rural: Rural
No. of Entity(s): 1
Entity Type: Humanoid, described only as small
Entity Description: No physical description beyond “small humanoid figure” is documented in the surviving source
Hynek Classification: CE-III — Close Encounter of the Third Kind. Close observation of an animate being associated with the object, without reported communication or physical interaction.
Duration: Undocumented
No. of Object(s): 1
Description of the Object(s): A cone-shaped device reported to emerge directly from the ground and return into it, rather than arriving or departing by air
Shape of Object(s): Cone-shaped
Size of Object(s): Undocumented
Color of Object(s): Undocumented
Distance to Object(s): Undocumented
Height & Speed: Not applicable — movement described as vertical into and out of the earth, not aerial flight
Number of Witnesses: 1 (Jack Peterson)
Special Features/Characteristics: Object reportedly emerged from and re-descended into the earth itself rather than arriving from the sky; no craft interior, propulsion method, or entry point (cave, shaft, fissure) is described in the surviving source
Case Status: Insufficient Data — single uncorroborated witness, no primary documentation located beyond a secondary fanzine citation
Source: Shavertron #14 (Richard Toronto), as reproduced in later humanoid-encounter compilations; HC Addition #3957, Type B
Summary/Description: Jack Peterson reported encountering a small humanoid figure that had emerged from a cone-shaped device, which had apparently emerged from the depths of the earth near June Lake, California. After the small humanoid re-entered the craft, it reportedly disappeared back into the earth.
Related Cases: California’s Underground Bases: Sector A–J (subterraneanbases.com), which catalogs this same account as a possible subterranean staging point or bore-hole access site
Detailed Report
The account as it survives is brief and comes to us secondhand. Witness Jack Peterson is reported to have encountered, near June Lake, California, sometime in 1952, a small humanoid figure emerging from a cone-shaped device. The device itself is described as having come up “from the depths of the earth” — that is, its point of origin was reportedly subterranean rather than aerial. After some unspecified interval, the humanoid figure re-entered the craft, which then descended back into the ground and disappeared.
No further detail is preserved in any version of this account located during this review: no description of the humanoid’s features beyond its small size, no stated duration, no description of an opening in the ground through which the device passed, and no indication of how close Peterson was standing or what, if anything, passed between him and the being. The report’s sole cited source is issue #14 of Shavertron, a letter-zine published by Richard Toronto dedicated to documenting and discussing the “Shaver Mystery” — the body of claims originating with writer Richard S. Shaver’s 1945 Amazing Stories submissions describing a hidden race of malevolent “Dero” and benevolent “Tero” beings living in vast cavern systems beneath the earth’s surface.
The Shaver Mystery itself is widely regarded within ufology and the broader paranormal research community as originating in pulp fiction and, per later editorial accounts of the phenomenon, in psychological material from Shaver’s own documented history rather than in verified field investigation. Shavertron continued for decades afterward as an outlet collecting reader-submitted accounts sympathetic to or inspired by the mythos, of which this appears to be one. This does not necessarily mean the underlying Peterson account is itself fabricated, but it does mean the account arrives through a source explicitly organized around a folkloric framework rather than through independent journalistic or investigative channels, and no attempt to verify Peterson’s identity or interview him directly appears in the historical record available to this archive.
RESEARCHER’S NOTES
The June Lake Encounter — 1952 and the Shaver Mystery Source Chain
- Location naming corrected via flagged discrepancy. This site’s legacy title reads “Lake June, California,” a location that does not appear in any gazetteer or source consulted. Every version of the underlying account, across multiple independent compilations and cross-references, consistently places this at June Lake, Mono County — a real, well-documented Eastern Sierra location. The field data above reflects the documented name while preserving the original title as this site’s established record.
- Source chain traces to Shaver Mystery folklore, not field investigation. Shavertron is not a neutral incident-reporting outlet; it is explicitly organized around discussion of Richard S. Shaver’s Deros mythology, a body of claims with origins in 1940s pulp fiction. This context matters for evidentiary weight without necessarily invalidating the account — readers should understand the framework the source operates within.
- Single uncorroborated witness with minimal detail. The surviving account offers no description of the entity beyond its small size, no stated distance or duration, and no description of how the ground itself opened or closed around the reported device. This is among the thinnest documentation profiles in this archive’s 1952 California case set.
- Pattern context: vertical-origin craft reports are rare and distinct from standard aerial sightings. Most CE-III cases in this archive involve a craft arriving or departing by air. A device reported to emerge directly from and return directly into the earth, with no aerial component at all, fits a much smaller and more specialized category of claim — one closely associated with subterranean-base and hollow-earth research rather than conventional UAP reporting.
- Cross-referenced on this network’s own subterranean-base archive. This same account is separately catalogued on subterraneanbases.com as a possible bore-hole or subterranean staging point in the June Lake region. The two entries should be read together; this page documents the encounter as a sighting report, while the subterraneanbases.com entry treats it as a data point in the broader underground-facility mapping project.
The June Lake account is preserved here as it has circulated for decades in humanoid-encounter literature: a brief, single-witness report transmitted through a Shaver Mystery-affiliated fanzine, with no independent corroboration located. It remains an open, thinly documented case — not confirmed, not disproven, simply insufficient.
“A small humanoid figure had emerged from a cone shaped device, which had apparently emerged from the depths of the earth.” — as recorded in Shavertron #14, describing Jack Peterson’s 1952 account
