What’s hiding in the Grand Canyon?
In 1909 a Phoenix paper reported a Smithsonian dig in a Grand Canyon cave full of mummies and Egyptian-style relics. This case lists what the records show, which of them come from the accused Smithsonian and Park Service, and what each theory rests on.
The question Did explorers find an Egyptian-style city in a Grand Canyon cave in 1909, and is the government hiding it?
What the records say
Parts of the documented story are still open: 6 of 12 timeline steps are Confirmed (score 88).
4 theories checked: 3 unverified, 1 likely. A theory is rated by its key claim.
The Park Service lists over 4,300 archaeological sites, all from Native American and later cultures
likelyCredible: it rests on a primary (tier-1) record. See the step
Down the rabbit hole
The ground line is the documented timeline. Each tunnel is a theory that branches off it; every chamber is a step, coloured by how well the records support it. The deepest chamber is the theory’s key claim. Tap one to open it.
Main timeline
Oldest first- 1882confirmed
A government geologist names Grand Canyon buttes after Hindu gods
In his 1882 US Geological Survey monograph, Clarence Dutton writes that a butte with “a surprising resemblance to an Oriental pagoda” was named Vishnu’s Temple, and another Shiva’s Temple. Buttes named Isis Temple and Cheops Pyramid followed the same fashion; who named those was not verified here.
T1Dutton, USGS Monograph 2, 1882pp. 148, 150T2WBUR Endless Thread, 10 Nov 2023transcriptT2Discover, 29 May 2023 - 12 Mar 1909likely
The Arizona Gazette reports a lone boatman, G. E. Kinkaid, reaching Yuma
The Phoenix paper ran a short item on Kinkaid’s solo trip down the Colorado. Historian Don Lago calls it a teaser for the April story; Discover says it did not mention the cave or Egyptian relics.
T2Lago, The Ol’ Pioneer, 2009p. 8T2Discover, 29 May 2023T3Colavito, transcription of the 1909 articles“Arizona Gazette, March 12, 1909”Sources disagreeAn unsigned proponent website (tier 4) says the March item already described the cave. Discover and the transcription read here say it did not. - 5 Apr 1909confirmed
The Gazette prints an unsigned front-page story of a Smithsonian cave dig
Under the headline “Explorations in Grand Canyon”, it said Kinkaid had found a rock-cut cavern of rooms, mummies and copper tools, now being explored under “Prof. S. A. Jordan” of the “Smithsonian Institute”. No archive copy of the page itself was opened for this case; its text was read in transcriptions.
T2Lago, The Ol’ Pioneer, 2009p. 3T2Smithsonian magazine, 2009 (updated 2024)myth no. 4involved party: Smithsonian InstitutionT2Discover, 29 May 2023T3Colavito, transcription of the 1909 articles“Arizona Gazette, April 5, 1909” - 16 Apr 1909likely
Flagstaff’s Coconino Sun says it “Looks Like a Mulhatton Story”
Eleven days later the Flagstaff paper called the find “a splendid piece of imagination”. Joe Mulhatton was a travelling salesman famous since the 1870s for planting fake discovery stories, many about caves.
T2Lago, The Ol’ Pioneer, 2009pp. 4, 7T3Colavito, transcription of the 1909 articles“Coconino Sun, April 16, 1909”T2Discover, 29 May 2023 - Apr 1909likely
Almost no other paper picks the story up, and the Gazette never follows it up
Lago checked more than a dozen newspapers and found one, the Jerome Mining News, that reprinted it without comment. The Gazette made no further mention of it.
T2Lago, The Ol’ Pioneer, 2009pp. 4, 7 - 1962likely
A book of old Arizona newspaper stories revives the article
The story was reprinted in “Arizona Cavalcade”, one of a series of collections of early Arizona newspaper items. Lago traces later interest to this reprint.
- 16 Apr 1965confirmed
Scientists date animal figurines left in Marble Canyon caves to 3,100–4,100 years ago
A paper in Science gives radiocarbon dates of 4,095 ± 100 years for split-twig figurines from Marble Canyon, backing earlier dates of 3,530 and 3,100 years. The Park Service says such figurines were first recognised in the canyon in 1933, in remote caves.
T1Euler and Olson, Science, 1965abstractT1NPS, Archaeological Resources (2026)“Split-Twig Figurines”involved party: National Park Service - 1992–1993confirmed
David Hatcher Childress claims a Smithsonian cover-up and a closed “forbidden zone”
Childress put the story in his 1992 book “Lost Cities of North and Central America”. His 1993 Nexus article, posted online that May, says the Smithsonian denies it and that the area with Egyptian place names is closed to visitors.
- 13 Jan 2000confirmed
The Smithsonian says its anthropology files hold no trace of Jordan or Kincaid
Replying to an enquiry, Smithsonian Information wrote that its Department of Anthropology “has searched its files without finding any mention of a Professor Jordan, Kincaid, or a lost Egyptian civilization in Arizona”. The Smithsonian is the accused party.
T3Colavito, “Archaeological Coverup?”, 2002“The Grand Canyon”T2Discover, 29 May 2023 - 10 Nov 2023likely
Park staff say the question still reaches them every year
The park’s cultural resource program manager, Ellen Brennan, told WBUR she is asked about the Egyptian caves “at least once or twice a year”, more often after a new article or video.
T2WBUR Endless Thread, 10 Nov 2023transcript - 16 Jun 2026confirmed
The Park Service’s 2026 rule book bars entry to every cave without a permit
The superintendent’s compendium requires a permit for any cave, citing “unrecorded features, archaeological resources” and wildlife, and closes Cave of the Domes to protect bats. Its named closures, such as the Hopi Salt Mines and Furnace Flats, do not mention the Egyptian-named buttes.
T1NPS, Superintendent’s Compendium, 16 Jun 2026pp. 5, 9, 16involved party: National Park ServiceNO TIERText search, 12 Oct 2026 - Aug 2026likely
The Park Service lists over 4,300 archaeological sites, all from Native American and later cultures
Its archaeology page says the oldest artifacts are nearly 12,000 years old, lists cultures from Paleo-Indian to Ancestral Puebloan, Hopi and Navajo, and describes granaries and storage cists. This is the Park Service’s own account, so it is Likely.
T1NPS, Archaeological Resources (2026)“Archeological Resources at Grand Canyon”; “Prehistory of Grand Canyon”involved party: National Park Service
Branches
Go down oneA branch is only as strong as its weakest step so far. The count is how many sources back each step.
“An Egyptian city is hidden in a cave”
Is there a rock-cut city with Egyptian-style relics in a Grand Canyon cave?
The Gazette’s unsigned front-page story. It said the builders were “of oriental origin, possibly from Egypt”, while likening the main idol to Buddha. Childress’s 1992–93 retelling made the Egyptian reading famous.
- 974 Web pages carrying the story, from Jason Colavito’s own Google search as of 2002 T3Colavito, “Archaeological Coverup?”, 2002“How the story grew”
- 185,291 YouTube views, Rated Red “Is There Actually a Secret Egyptian Tomb in the Grand Canyon?” (an explainer that poses the question) as of 12 Oct 2026 T3YouTube: Rated Red, 2018
It ran on the front page of a real newspaper, in great detail
Childress: “It is hard to believe such a story could have come out of thin air.”
The premise: confirmedTrue that it was a front-page story. In 1909 that was no sign of truth: Lago documents the Gazette’s tall tales and a known hoaxer whose trademark was convincing detail.
T2Lago, The Ol’ Pioneer, 2009pp. 3, 7–8T2Smithsonian magazine, 2009 (updated 2024)myth no. 4involved party: Smithsonian InstitutionThe canyon is full of Egyptian place names
Childress lists Tower of Ra, Isis Temple and Cheops Pyramid and asks whether they mark the find.
The premise: confirmedTrue: buttes are named Isis Temple and Cheops Pyramid. The fashion predates 1909: a federal geologist named Vishnu’s and Shiva’s Temples in 1882, for their looks, and park staff say early mappers liked grand foreign names.
T1Dutton, USGS Monograph 2, 1882pp. 148, 150T2WBUR Endless Thread, 10 Nov 2023transcriptT2Discover, 29 May 2023Its details, like the Laguna Dam sluiceways, read like an eyewitness
A research site argues: “Someone who made that river journey wrote that sentence.”
The premise: likelyThe dam was real and in the news: Lago notes the Gazette’s 1 April 1909 paper was packed with its dedication. Lago also notes that lots of exact detail was a hoaxer’s tool.
- confirmed
The 1909 Gazette article describes a vast cavern of rooms, mummies and copper tools
It put the entrance 1,486 feet down a sheer wall, said “upwards of 50,000 people” could have lived there, and said visitors would be turned away “under penalty of trespass”.
T3Colavito, transcription of the 1909 articles“Arizona Gazette, April 5, 1909”T2Lago, The Ol’ Pioneer, 2009p. 3StartStrength so far:confirmed· 2 sources on this step - likely
No independent record of the cave, its finders or its relics has been found
Discover reports no record of either Kinkaid or Jordan. Even a proponent research site that has searched archives reports “nothing that confirms the story”. Absence is not proof: no one has surveyed every cave.
▼ WeakerStrength so far:likely· 2 sources on this step - likely
The canyon’s known cave finds are Native American and thousands of years old
Split-twig figurines from Marble Canyon caves date to about 3,100–4,100 years ago. The Park Service’s list of cultures runs from Paleo-Indian to Hopi and Navajo and includes no Old World one.
T1Euler and Olson, Science, 1965abstractT1NPS, Archaeological Resources (2026)involved party: National Park Service= HoldsStrength so far:likely· 2 sources on this step - unverified
Key claim: an Egyptian-style city lies in a Grand Canyon cave
No tier 1–2 record supports it; its only source is the unsigned 1909 article. The Smithsonian and the Park Service deny it, but they are the accused parties. Independent historians call the story a hoax (see the hoax branch).
T2Lago, The Ol’ Pioneer, 2009p. 3T2Discover, 29 May 2023T2Smithsonian magazine, 2009 (updated 2024)myth no. 4involved party: Smithsonian Institution▼ WeakerStrength so far:unverified· 3 sources on this step
Bullshit meter
- Key claim: an Egyptian-style city lies in a Grand Canyon cave. Unverified.
- Key claim contradicted by tier 1? Not by an independent record. The Smithsonian and the Park Service, both accused, deny it. Independent historians (tier 2) call the article a hoax, but no independent tier-1 record rules the cave out, and nothing beyond the 1909 article supports it.
Fluff meter: possibly planted
- Can’t be traced to an original record. Present: the only source is the unsigned 1909 article; no field notes, relics or photographs have surfaced.
- First appeared from new or anonymous accounts. Present: the 1909 article carried no byline (Discover, Lago).
- Coordinated identical wording. Not measured.
- Cited source doesn’t exist. Not measured by us: the Smithsonian (the accused party) and Discover report no record of Kinkaid or Jordan; we did not search census or staff records ourselves.
- Later contradicted. Present but weak: a Flagstaff paper doubted it within 11 days, and historians call it a hoax. No tier-1 record independent of the accused parties rules the cave out.
● present · ○ absent · – not measured. Lists signals only. It never accuses anyone.
Personal interest meter
- Smithsonian Institution, is named in the article as the dig’s sponsor and is accused of hiding it, so its denials are records of its own side. T2Smithsonian magazine, 2009 (updated 2024)involved party: Smithsonian Institution
- National Park Service, manages the land and is accused of closing it off, so its archaeology and closure records are records of its own side. T1NPS, Superintendent’s Compendium, 16 Jun 2026p. 16involved party: National Park Service
“Has a documented interest” only, each one sourced. Never an implication of guilt.
Correlation meter
- David Hatcher Childress’s 1992–93 article, the origin of the cover-up and closed-area branches, and of the place-name argument in the Egyptian-city branch. T3Childress, Nexus, via KeelyNet, 1993
- Don Lago’s 2009 study, the main independent history behind the 1909 steps and the hoax branch. T2Lago, The Ol’ Pioneer, 2009pp. 3–11
- Grand Canyon caves, real Archaic finds in Marble Canyon caves (main timeline), the claimed Egyptian cave (Egyptian-city branch) and the cave closures (closed-areas branch). T1Euler and Olson, Science, 1965abstract
Links to other cases appear once those cases exist.
Who worked on this
This case was assembled by the site from public records. Contributions are not open yet. Nothing here is invented, so the counts are zero.
This is the first published version of the case.
Sources
- T2Don Lago, “‘Looks Like a Mulhatton Story’: The Origins of the Grand Canyon Egyptian Cave Myth”, The Ol’ Pioneer (magazine of the Grand Canyon Historical Society), vol. 20 no. 2, Summer 2009, pp. 3–11. A historian’s study with endnotes; not peer-reviewed.. www.grandcanyonhistory.org
- T2Alex Orlando, “No, Egyptian Artifacts Were Never Found in the Grand Canyon”, Discover Magazine, 29 May 2023. www.discovermagazine.com
- T2“The Grand Can-Spiracy”, Endless Thread, WBUR (Boston’s NPR station), 10 Nov 2023; producers Jacob Garcia and Ben Brock Johnson; transcript on the episode page. Includes interviews with Grand Canyon National Park staff.. www.wbur.org
- T2involved party: Smithsonian Institution Jesse Rhodes and Eli Wizevich, “Busting 13 of the Smithsonian’s Most Persistent Myths”, Smithsonian magazine, first published 31 Aug 2009, updated 9 Aug 2024; myth no. 4. Published by the Smithsonian, the accused party.. www.smithsonianmag.com
- T1Clarence E. Dutton, “Tertiary History of the Grand Cañon District”, Monographs of the United States Geological Survey, vol. II (Washington: Government Printing Office, 1882). Copy read: the Internet Archive scan’s OCR text.. archive.org
- T1Robert C. Euler and Alan P. Olson, “Split-Twig Figurines from Northern Arizona: New Radiocarbon Dates”, Science 148 (3668): 368–369, 16 Apr 1965, doi:10.1126/science.148.3668.368. Abstract read via PubMed (PMID 17832112).. doi.org · copy read: pubmed.ncbi.nlm.nih.gov
- T1involved party: National Park Service “Archaeological Resources”, Grand Canyon National Park, US National Park Service, page last updated 14 Aug 2026. www.nps.gov
- T1involved party: National Park Service “Cave / Karst Systems”, Grand Canyon National Park, US National Park Service, page last updated 11 May 2024. www.nps.gov
- T1involved party: National Park Service Grand Canyon National Park, “Superintendent’s Compendium of Designations, Closures, Use and Activity Restrictions, Permit Requirements, and Other Regulations”, 16 Jun 2026 (48 pages). www.nps.gov
- T3David Hatcher Childress, “Archeological Coverups?”, Nexus New Times vol. 2 no. 13, as posted on the KeelyNet bulletin board on 8 May 1993 (file CANYON.ASC), with a transcription of the 1909 article. Original location http://www.keelynet.com/unclass/canyon.txt (now offline); copy read: Internet Archive capture of 16 Apr 1998. A record of what Childress claims.. web.archive.org
- T3Jason Colavito, “Archaeological Coverup?”, Lost Civilizations Uncovered (author’s website), 2002 by the author’s account. Quotes in full the Smithsonian’s e-mail reply of 13 Jan 2000. Commentary.. jcolavito.tripod.com · copy read: web.archive.org
- T3Jason Colavito, “The 1909 Grand Canyon Hoax” (author’s website, undated): transcriptions of the Arizona Gazette items of 12 Mar and 5 Apr 1909 and the Coconino Sun item of 16 Apr 1909. A transcription, not a scan.. www.jasoncolavito.com
- T3Mark A. Carpenter, “Forbidden Zone of The Grand Canyon: Legends, Landmarks & Lies”, Ancient Origins, 1 Nov 2020. Argues the cover-up and closure claims. A record of the claim.. www.ancient-origins.net
- T4“Grand Canyon — 1909 Kincaid Research Project”, unverifiableonline.com, an unsigned research site, read 12 Oct 2026. Argues the story has not been properly checked. A record of the claim.. unverifiableonline.com
- T3“Is There Actually a Secret Egyptian Tomb in the Grand Canyon? | Strange Heartland History”, Rated Red channel, YouTube, published 18 Jun 2018. An explainer that poses the question.. www.youtube.com
- T3“The Hoax of 1909: Egyptian Artifacts in the Grand Canyon?”, Shaka Guide channel (a travel-guide app), YouTube, published 26 Apr 2023. www.youtube.com
- NO TIEROur own text search of the 16 Jun 2026 Superintendent’s Compendium (native PDF text, not OCR) for “Isis”, “Osiris”, “Horus”, “Cheops”, “Tower of”, “Shiva”, “Trinity”, “Haunted” and “Stanton”: 0 matches. Not a source tier.