Could you share anything that you may be able to find about the following "Fortean" related location?: Mexico, Acambaro -- Prof. Hapgood discovered a stone staircase leading into the earth on the Mizquiz property, filled with volcanic material but ancient and leading somewhere. From I.N.F.O. JOURNAL, Vol. 2, No. 2.
The Acámbaro region in Guanajuato, Mexico, is best known in Fortean circles for the controversial Acámbaro figurines—thousands of ceramic artifacts unearthed in 1944 by German merchant Waldemar Julsrud, depicting humans alongside dinosaurs and other anomalous creatures, suggesting either ancient human-dinosaur coexistence or an elaborate hoax (later largely debunked by thermoluminescence dating placing them in the modern era). The site has drawn investigators interested in anomalous archaeology, including Prof. Charles Hapgood (1904–1982), the American historian and anthropologist famous for his earth-crust displacement theory.
Regarding the specific claim of a "stone staircase leading into the earth" on the Mizquiz (or Muzquiz) property: This appears to originate from a brief report in the INFO Journal (published by the International Fortean Organization, a group dedicated to investigating anomalous phenomena in the spirit of Charles Fort). In Vol. 2, No. 2 (likely from the early 1970s, based on the journal's publication timeline), page 7 notes:
Prof. Hapgood’s discovery of a stone staircase leading down into the earth at Acámbaro in central Mexico, now filled with hard-packed volcanic material. The site is located on the Muzquiz property.
No further details are provided in the journal entry itself, such as the exact year of discovery, depth, purpose, or what (if anything) lay at the bottom — consistent with the publication's style of cataloging unexplained anomalies without deep elaboration. The issue also references other underground oddities, like ancient passage tombs in Cornwall, England, but nothing expands on this one.
Hapgood did visit Acámbaro twice to study the figurines: first in the 1950s (documented in his 1973 book Mystery in Acámbaro: Did Dinosaurs and Humans Live Together?, where he excavated some pieces himself and argued for their potential authenticity despite skepticism) and again in 1968 with mystery writer Earle Stanley Gardner (creator of Perry Mason), who brought forensic expertise to authenticate the finds. It's plausible the staircase was encountered during one of these expeditions, perhaps near El Toro Mountain (the primary dig site), but neither man's published accounts mention it explicitly — suggesting it may have been a peripheral, unverified observation shared informally with Fortean researchers.
This anecdote has since circulated in fringe literature on subterranean worlds and suppressed archaeology, often without additional evidence or verification. For instance:
Bruce Walton's 1990s compilation A Guide to the Inner Earth repeats the journal's description verbatim, framing it as evidence of ancient tunnel networks possibly linked to lost civilizations or "inner earth" access points.
Similar retellings appear in conspiracy-oriented texts like Project Redbook and Cosmic Conflict Defined, which speculate on connections to volcanic activity, ancient migrations, or even extraterrestrial bases, but these build on the same thin source material.
No mainstream archaeological records, Mexican government reports, or subsequent expeditions confirm the staircase's existence, and the Mizquiz property isn't publicly mapped or documented in relation to it (local land records might require on-site inquiry). If you're seeking primary visuals or deeper dives, digitized back issues of INFO Journal are sporadically available via Fortean archives, though Vol. 2, No. 2 isn't widely online. For context on Hapgood's Acámbaro work, his 1973 book is a solid (if speculative) starting point. If this ties into a specific theory or you'd like me to chase related anomalies (e.g., other Mexican underground sites like the Chichén Itzá cenotes or Teotihuacán tunnels), let me know!
The following question was posed to the a.i. (artificial intelligence program) "Grok":
