Kansas, Hutchinson
Corroborative evidence supports the existence of tunnels leading from Hutchinson, Kansas, to Kinsley, Kansas, and Nebraska. These are described as part of a network of underground facilities, with Hutchinson listed as a key connection point in underground base mappings derived from public records and insider accounts from workers and retirees.
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Kentucky, Fourmile
Reports confirm that on December 26, 1945, an explosion in the Belva Mine (also referenced in Fourmile contexts) trapped 31 miners underground. Survivors described seeing a door open in the rock wall, revealing a well-lit room from which a man dressed as a "lumberjack" emerged, assuring them of rescue before returning and closing the door. This aligns with similar accounts from other mine disasters involving dimensional visitors providing aid. A very similar story came out of Pikeville Kentucky and there is some confusion as to whether or not this involved the SAME account. Similar "guardian angel" visits with lighting and visions occurred in Sheppton, PA disasters, suggesting interdimensional origins. Pineville newspapers from late 1981 to early 1982 documented the event.
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Kentucky, Lexington
Underground caves near Lexington contain remnants of an ancient civilization, as detailed in explorations linking to prehistoric and mysterious subterranean structures. Local histories and psychometric researches describe vast cavern systems with historical artifacts and unknown origins beneath the region.
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Kentucky, Louisville
UFO abductee Rex Ball reported being taken by small, oriental-like men into a UFO and then to an underground base beneath Fort Knox, south of Louisville, jointly occupied by them and U.S. military personnel. Alternative accounts place a similar base in Georgia, but the Fort Knox location is affirmed in underground base directories. One video gives much information but from a purely skeptical/debunking point of view.
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Kentucky, Mammoth Caves
Explorations of unexplored levels below Mammoth Cave reveal larger, more beautiful cavern systems, as described through psychometry (remote viewing via touching objects like rocks). "Experiment XXX" details vast subterranean realms beneath the known caves, with historical psychometric sessions confirming glowing walls and ancient formations.
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Kentucky, Pikeville
There is a report of a strange disappearances that occurred in the Truck Coal Mine 3 miles east of Pikeville, where two boys entered and vanished, leaving their lamp at the entrance. A full search yielded no evidence, aligning with FATE magazine reports from November 1950 on anomalous mine events in the area.
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Kentucky, Riverton
Patsey Wingate, experiencing UFO encounters and missing time, reported a mountain near Riverton with frequent UFO sightings and underground humming sounds. She had vivid dreams of children in glass cages underground—some human-like, some alien-like—begging for help. This is detailed in UFO UNIVERSE, Vol. 3, No. 2 (Summer 1993).
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Kentucky, Salem
Southeast of Salem, near Doan Spring, Hodges Cave is believed to be the cavern in John Uri Lloyd's ETIDORHPA, illustrated by a veteran Mason. Witnesses report Masons in the area and a stone staircase leading deep underground, evoking terror. The book describes a vast inner earth realm accessed via Kentucky caves.
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Kentucky, Stoven's Cave [Site Unspecified]
Unusual sounds emanate from Stoven's Cave, as reported in TECH TROGLODYTE (NSS affiliate newsletter), Vol. 12, No. 2, confirming anomalous auditory phenomena in Kentucky caverns.
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Kentucky, Tazewell County
Higginbottom #1 or Devil's Slide Cave is avoided by locals due to beliefs in a loathsome creature at the bottom, as per CAVE LEGENDS OF THE APPALACHIANS by Janice Goad in TECH TROGLODYTE, Vol. 12, No. 2.
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Kentucky (Near the Kentucky-Virginia Border)
In 1950, boys on bikes found a cave mouth with a rotted boat; entering revealed a narrow recess leading to steps descending into depths. They returned with supplies but found the passage sealed or concealed. Later searches by the boys, others, and the Shaver Mystery Club failed to relocate it. From THE HOLLOW HASSLE Newsletter, Vol. 3, No. 3, May 1982.
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Lebanon, Beirut
Disaster workers discovered a massive system of underground tunnels during rescue operations, including subterranean rooms potentially used for shelter. Networks of tunnels were confirmed in post-explosion searches.
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Louisiana, Fort Polk
Over 19,000 UN troops (French, Pakistani, Russian) are housed in war-ready underground facilities for military supplies storage. Accounts from a former serviceman and Creek Indian traditions affirm a vast subterranean domain beneath the state.
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Maine, Robbinston
A secret socialist New World Order deep underground military base manned by Red Chinese soldiers in Robbinston, Maine, was bombed by the Trump Administration using 30,000 pounds of bunker-buster explosives, killing at least 50,000 invaders. Radio host Hal Turner reported the event, linking it to an earthquake.
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Malta, Valletta
Traditions describe walkable underground tunnels spanning Malta, sealed by the British government. The Hypogeum of Hal Saflieni contains bones of over 33,000 sacrificed by a neolithic cult. National Geographic (Aug. 1940) reports school children disappearing in the Hypogeum. British embassy worker Lois Jessup explored a 3-ft. square burial chamber leading to a ledge over a chasm, witnessing tall, white-haired humanoids on an opposite ledge who directed a "wind" and slippery entity toward her. Later, 30 children and teachers vanished in the same passage after a cave-in and cut rope; grieving mothers heard cries from underground for a week. Connections to Vatican catacombs in Rome are noted.
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Maryland, (Baltimore County)
A top-secret underground facility exists in Baltimore County, as per reports in underground base inventories.
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Maryland, Crofton
An ancient network of tunnels and crawlways was discovered beneath a parking lot during 1973 excavations, covered by later construction. The Washington Star News (July 25 and Aug. 15, 1973) reported the artificial tunnels as unexplored and prehistoric.
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Maryland, Fort Meade
Cavernous subterranean expanses beneath NSA headquarters house over 10 acres of sophisticated supercomputers monitoring global communications (telephone, telegraph, telex, fax, radio, TV, microwave, internet). From UFO Magazine, Vol. 7, No. 6, by Richard Sauder.
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Maryland, Between Olney & Laytonsville
On Riggs Road off Rt. 108, a FEMA-maintained underground facility with at least 10 levels and electronic surveillance, possibly NSA-linked. Long lines of cars enter at shift changes, passing surveillance before disappearing behind a knoll. From UFO Magazine, Vol. 7, No. 6, by Richard Sauder.
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Maryland, Thurmont
See: Pennsylvania, Blue Ridge Summit (cross-referenced in underground base lists as connected facilities).
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Massachusetts, Boston
Ervin M. Scott intercepted an electronically augmented telepathic transmission from a cavern-dweller woman under Salt Lake flats under siege by "evil ones," warning of a woman abducted into tunnels beneath an abbey in north Boston (near the First Church of Roxbury, the oldest abbey with deep foundations). Another voice interrupted, denying it as a trick. From SEARCH magazine, July 1964.
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Massachusetts, Maynard
An underground FEMA facility exists in Maynard, as documented by Richard Sauder in underground base research.
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Massachusetts, North Salem
Reports of an ancient stone staircase leading into the earth, blocked by fallen rock, as described in THE UNDERPEOPLE by Eric Norman (pages 21-22).
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Mexico (Central)
Aztecs believed they lived in Aztlan (possibly Atlantis), which faced catastrophe; survivors escaped to Chicomoztoc, the "Seven Cavern Cities of Gold," a subterranean land of origin for the tribes.
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Mexico (Unspecified)
A giant was found in a Mexican cave, shocking the world with implications for ancient anomalies and oversized remains.
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Mexico, "Interior"
Frank J. Mezta visited "enchanted caves" in Mexico's interior; initial entry halted by premonition, second succeeded but labyrinthine complexity forced retreat. Another tunnel led downward endlessly. An earlier expedition by an American with locals saw a "man with a bull's head" next to a "naked midget"; guns jammed, lights failed, several killed or disappeared. From THE HIDDEN WORLD, issue 8-A (Winter 1962).
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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.
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Mexico, Chihuahua
The largest crystals discovered are in caverns 984 feet beneath Sierra de Naica Mountain, with massive gypsum formations up to 11 meters long in a U-shaped cavity.
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Mexico, General Zaragoza, Nuevo Leon
A cavern in central Mexico houses a strange small bipedal creature, with footprints seen in mud by speleonauts. Ancient rock art and fauna support anomalous subterranean life.
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Mexico, Guadalupe Island
Strange anomalies surround and underlie Guadalupe Island off Baja Peninsula, potentially alien bases with gravitational distortions and UFO hotspots.
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Mexico, Guerrero
The mysterious Juxtlahuaca Cave contains Olmec-linked murals and iconography, with ancient paintings, burials, underground lake, and aragonite crystals dating back 2,500 years.
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Mexico, Itaccihuatl
Margaret Rogers visited an underground kingdom of benevolent giant human beings near Itaccíhuatl, as published in AMAZING STORIES, SEARCH, and FATE magazines.
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Mexico, Mexico City
An anonymous writer remote-projected a subject to a mountain outside Mexico City, entering a glowing-walled shaft to a bottom with "evil" presence and a mental battle. The site is 30 miles NE near ancient pyramids with tunnels and caverns. From AMAZING STORIES, July 1947.
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Mexico, Mitla
Ancient city SE of Oaxaca in the Zapoteca province, containing an underground temple with three sub-basements below it; the lowest level had/has a stone door leading to an underground concourse where human sacrifices to the "gods of the underworld" would be sent, behind which door victims would be sealed. Roman Catholic priests entered and explored this cavern centuries ago, passing bones along a paved concourse with stone buttresses. A mysterious "wind" extinguished their torches; they retreated and emerged convinced that it was a "cavern to hades" and ordered the sub-basements to be filled and the whole underground maze sealed. The Catholics built a church OVER the entrance to this underworld domain. "Project Lyobaa" confirms that there is an underground maze below the surface, using ground-penetrating radar.
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Mexico, Oxkutzcab
Loltun Caverns near Oxkutzcab hold legends of strangeness and rich history, including woolly mammoth bones and Pleistocene human presence. THE DISCOVERY AND EXPLORATION OF X-KUKICAN by Dr. J. Manson Valentine details ancient Mayan sites with underground caverns on pages 7-8 and 36.
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Mexico, Ojinago
A cave 5 miles south of Ojinaga is the abode of devil-men controlling witches' minds; locals make pilgrimages. From "Pilgrimage to the Devil" by Walley George in FATE Magazine, Aug. 1957.
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Mexico, Puerto Aventuras
A cavern system explored with legends naming it the "Cavern of the Dwarves," tied to ancient folklore of small subterranean beings.
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Mexico, San Juan Teotihuacan
Beneath the Pyramid of the Moon, a strange tunnel connects to the underworld, detected by electrical resistivity tomography and ambient noise tomography surveys confirming cavities.
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Mexico, Sonora
A canyon near the old city holds a cave leading to the ancient underground city of Chihuatlan. From THE HIDDEN CITY OF CHIHUATLAN by Charles A. Marcoux; documents detail pages 14 and 29 with maps and explorations.
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Mexico, Tampica
Fantastic discoveries in caverns/tunnels beneath Mount Sombrero near Tampica, suggesting a major treasure vault, with explorers tight-lipped on details.
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Mexico, Tancitaro
A huge underground grotto, constructed anciently, discovered 15 miles from the city, with thermal features and hidden access.
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Mexico, Tequila Volcano
Exploration of a vast cave-tunnel through the mountain, home to dangerous serpents, as in TRAPPED IN LA VENTA CAVE accounts of snake-filled passages.
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Mexico, Yucatan Peninsula
Aquatic cavern worlds below the Yucatan, including Sac Actun (263 km long) connecting to Dos Ojos (83 km), largely water-filled with Mayan ritual significance.
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Michigan, Battle Creek
An underground FEMA facility in Battle Creek, as per Richard Sauder's research on hidden government installations.
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Minnesota, Faribault
Strange hauntings in Hell's Tunnel (also Teepee Tonka Tunnel or Root Cellar), an underground storage for vegetables with eerie history and unexplained events.
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Minnesota, Grand Marais
About 14 miles northeast in Judge C.R. Magney State Park, the Brule River splits; half disappears into a deep hole, with dyes and ping-pong balls vanishing without reappearing downstream, suggesting an underground reconnection.
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Minnesota, Redwood Falls
A WWII trainee discovered a small underground passage near Redwood Falls leading to an ancient, tiled concourse and alien realm with "deros" and "teros." He emerged 6 months later with a "tero" woman as his wife, living in fear of surveillance. From a letter to Richard Shaver (circa 1950s).
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Minnesota, West Kittsondale
Teenagers explored unusual drains and staircases in the area, part of vast subterranean networks with spiral stairways in Kittsondale tunnels.
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Mississippi (Winston County)
Choctaw believe they emerged from a 50-foot high mound with natural openings (some sealed) leading to a vast underground realm; other tribes trace origins there. Nanih Waiya Mound is the legendary birthplace.
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Missouri, Bonne Terre
One of the largest underground lakes discovered, a 150-year-old billion-gallon subterranean lake in a former lead mine, now a vibrant scuba site.
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Missouri, Camden County
A military veteran explored a cave seeing a tall, brownish bipedal reptilian humanoid in a strange uniform on a golf-cart-sized conveyance through a small passageway. Download a pdf file here...
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Missouri, Cameron
Rumors of a haunted cave or mine, with Cameron Cave as a maze cave with 490 passages discovered in 1928, tied to eerie legends. Download a pdf file here
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Missouri, Carthage
An individual lost in a massive U.S. Navy underground storage facility in Carthage entered the "Navy" zone, passing deeper through an alien "screen" appearing as a wall into a reptilian section. From Pat Garrett's account.
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Missouri, Kansas City
An "underground city" nicknamed Subtropolis, a 55-million-square-foot business complex in limestone mines with 1,260 acres, 8.2 miles of roads, and 2.1 miles of railroad.
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Missouri/Kansas, Kansas City
A man exploring a cave or grotto on a steep Missouri River embankment encountered a tall creature with cat or lizard-like eyes, possibly from the river or cave. From Charles Marcoux.
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Missouri, Koshkonong
Stories of a mysterious cave in a canyon, as in Grand Gulf State Park's collapsed dolomite cave system stretching three-quarters of a mile with 130-foot walls and a natural bridge.
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Missouri, Moberly
A strange ancient underground city inhabited by giants was discovered beneath a coal mine in 1885, with elaborate streets, statuary, and massive skeletons three times normal size. Go to this website and do a ctrl/f page find for: tooth

Missouri, Springfield
A truck driver filmed driving into one of America's underground cities beneath Springfield, a 5-million-square-foot warehouse system with over 700 trucks daily.
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Mongolia ("a remote region")
A strange ancient sophisticated metal door embedded high in a cliff in a remote Mongolian region, sealed for over a thousand years with no hinges or seams, leading to unknown depths.
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Mongolia
Ferdinand Ossendowski's "BEASTS, MEN & GODS" reports ancient traditions of underground cities and huge caverns beneath Mongolia, including the subterranean kingdom of Agharta with capital Shambhala, a hidden realm of advanced beings ruling covertly.
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Nebraska, Omaha: Strange caverns beneath Omaha, including Robber's Cave (older than the city, with legends of hidden residents) and other subterranean spots like Indian Cave State Park with prehistoric petroglyphs.
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Netherlands
A nexus of Freemason-controlled underground networks and bases, with the Grand Orient of the Netherlands overseeing 145 lodges and 5,792 members, including hidden operations and museums.
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Nevada-Arizona
Hoover Dam workers penetrated extensive caverns near cliff bases during construction. Lake Mead is a UFO hotspot, with one dam level featuring zodiac tile inlays suggesting an entrance. A secret tunnel 2-4 miles underground links Area 51 to Area 52 and a massive base 15 miles below Hoover Dam (size of New York City) for alien races under elite protection. From Vaughn M. Green's letter in SHAVERTRON newsletter No. 14.
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Nevada, Area-51 / Nellis AFB (and surrounding areas): Area 51/Nellis AFB hosts underground bases and tunnels for alien craft investigation, stealth R&D, biological weapons, genetic manipulation, and holding alien materials/prisoners. Tunnels connect to Ft. Irwin, CA; Page, AZ; Tonopah, NV; Wiciup, AZ. Includes operating rooms, hospital, and security. Col. Billie Faye Woodard recounts travels to underground cities and Earth's inner concavity starting at Area 51, spending years beneath the surface.
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Nevada, Boulder Dam (Now Hoover Dam)
Underground tunnels and UFO activity between Boulder Dam base and Jumbo Peak. From Lew Tery.
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Nevada, Coyote Springs: A man disappeared investigating a cave near Coyote Springs, not far from Nellis AFB and Area 51. Kenny Veach vanished in 2014 near the "M Cave," an anomalous site causing physical vibrations. - -1- - -2- - -3- -

Nevada (Eastern)
A cave in eastern Nevada is the source of legends of a surface tribe descending to live in an underground paradise. Also, legends of underground giants who were defeated by the Paiute Indians. Lovelock and Hidden Caves affirm prehistoric habitation with anomalous artifacts and giant remains.
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Nevada, Eureka
A mysterious maze of underground tunnels and rooms beneath Eureka, described as an "underground cathedral" in Charles Hillinger's Los Angeles Times article (Mar. 2, 1975).
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Nevada, Fallon AFB: At least 7 levels of an underground UFO base near Fallon AFB ("the flats" near Reno), known as "American City." From the IndiaForums compilation.
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Nevada, Gass Peak
North of Las Vegas, an explorer looking for underground tunnels disappeared at Gass Peak.
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Nevada, Groom Lake
A worker in the underground network under Groom Lake described alien activity via top-secret briefings, including captured craft and entities.
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Nevada, Hawthorne
Walker Lake is a "bottomless lake" with underground connection to the Pacific Ocean, housing an above-top-secret submarine base for commuting via subterranean aqua-caverns. Hawthorne Army Depot covers 147,000 acres with restricted zones.
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Nevada, Henderson
Near Henderson, some boys discovered a cavern deep within which a creature with a 'guttural' voice was heard; inside the cave they found a rod with unusual writing. That night, a "Lizard Man" with ridges peered through their window. Cherry Hinkle felt it wanted the rod back; they returned it to the cave mouth and had no further visits from the creature.
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Nevada, Indian Springs
Charles Hall, stationed at Indian Springs (Creech AFB) near Nellis ranges, encountered "tall whites" (human-like), "Nordics," and "grey" aliens living in an underground city with families/children.
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Nevada, Las Vegas
Several underground joint military bases within 100 miles, plus strange tunnels below Las Vegas itself, including a top-secret nuclear facility in Frenchman Flat with deep underground weapons labs.
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Nevada, Las Vegas (mountain range west of Las Vegas)
Two ranges west (Spring Mountain and La Madre Mountains) host an underground Pleiadean base and reptilian bases, with vortex energy and alien interactions.
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Nevada, Lovelock
Humboldt Mountain Range cave (150 feet long, possibly longer before cave-ins) was home to dangerous cannibalistic red-haired giant humanoids (8-10 feet tall). Paiute tribes destroyed them by fire; 65 bodies (victims?) and 4 giant remains excavated.
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Nevada, Mercury
An electrician at Mercury base camp on Nevada Test Site saw "aliens" in stainless steel caverns 3,000 feet below surface. Reynolds Electric workers faced harassment and threats. Related murders (Stayce Borland, helicopter crash) tied to concealing genetic research, alien interaction, and antigravity tech run by aliens via mind control. From "The Billy Goodman Happening" KVEG Radio, Nov. 19, 1989.
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