A single species of blind cave fish spans six states — proving that a vast interconnected cavern system underlies the central United States, most of it unmapped and unexplored.
Missouri alone has over 2,500 known caves, with dozens of new ones discovered every year. A single species of blind albino cave fish — the Typhlitis — has been found in cave systems spanning Kentucky, Indiana, Illinois, under the Mississippi River, and into Missouri, Arkansas, and Oklahoma, proving that a vast interconnected cavern network underlies a massive swath of the central and southern United States. With only a few thousand National Speleological Society members in the entire country and only a fraction of those active, the overwhelming majority of America’s tens of thousands of known caves have never been carefully mapped. Thousands more remain undiscovered entirely.
Erich A. Aggen Jr.’s 1991 article in SEARCH Magazine connects this geological reality to the UFO-subterranea hypothesis: if non-human intelligences have established underground bases on Earth, the American cave system offers a natural infrastructure of almost unlimited scale. Mexico’s Sotano de las Golondrinas — a vertical sinkhole over 1,100 feet deep with unmapped passages at its floor — sits in territory where local inhabitants report mysterious disappearances near the entrance. And the 1968 Schooner nuclear test in Nevada provides hard evidence of just how connected these systems are: five days after a 35-kiloton underground detonation, radiation levels spiked 10 to 20 times normal in Canada, over 1,000 miles away. The only explanation is an interconnected cave system stretching from Nevada to the Canadian border.
Caves in the United States
Erich A. Aggen, Jr., in his article ‘TOP SECRET: ALIEN UFO BASES’ (SEARCH Magazine, Summer 1991 issue), presented the following revelations concerning the UFO-Subterranea connection:
“…A great deal of UFO research has also led to the conclusion that various…species of aliens have set up secret underground bases in the United States and other countries. It is logical to assume that such bases have also been established elsewhere in the solar system. If such bases exist, where would we find them? Existing information allows us to make a few educated guesses.
“EARTH BASES: UNDERGROUND – The dark, cavernous world beneath our feet is the source of many baffling mysteries. Clandestine UFO bases may be hidden deep within the earth in natural and/or artificial caverns. As a former member of the National Speleological Society (NSS), I am well aware of the vast extent of cave systems within the United States. In my own native state of Missouri, for example, there are over 2,500 known caves and dozens of new ones being discovered every year. Many of these caves are intricately linked together by numerous passageways and interconnecting chambers.
“One particular species of blind white (albino) cave fish, the TYPHLITIS, has been found in many widely separated cave systems over several states. It has been found in caves that make a great arc through Kentucky, Indiana, Illinois and UNDER the Mississippi River extending into Missouri, Arkansas, and Oklahoma!
A VAST SECTION OF THE CENTRAL AND SOUTHERN UNITED STATES MUST LIE ABOVE ONE IMMENSE CAVERN SYSTEM!
“Many caves possess rooms hundreds of feet in length, width, and height. In most cases, these huge natural caverns can only be reached and explored with the utmost skill and perseverance. There are only a few thousand NSS members in the United States and only a few hundred of this number are active spelunkers. With so few spelunkers spread over such a large area, only a very small fraction of the tens of thousands of known caves in this country have been carefully mapped and explored. Thousands of other caves remain undiscovered and unexplored.
“Extensive evidence indicates that caves in the United States may be connected with caves in other parts of the world. In Mexico, the cave known as ‘Sotano de las Golondrinas’, (or) basement of the swallows, in the Municipio de Aquismo, S.L.P., reaches a depth of 1100 feet (334 meters). The cave is actually a giant ‘sinkhole’ or ‘hole’ in the ground with a nearly circular opening at the top, hundreds of feet in diameter. It is impossible to climb down the sides of Golondrinas because the walls of the opening are too smooth and “belled-out”. To reach the bottom of the cave, a special rope over 1100 feet long must be secured at the top of the opening and dropped into the sinkhole. Explorers must then descend into the yawning hole one at a time using special cave repelling gear and climbing techniques. At the bottom of Sotano de las Golondrinas are numerous ‘leads’ or openings to a multiplicity of different crevices, passages, crawlways, and rooms which have never been mapped or investigated.
“The entrance to Golondrinas is located in one of the most primitive and uncivilized areas of Mexico and local inhabitants are afraid to approach the cave because they believe it is full of ‘evil spirits’ which lure people to their deaths. They tell stories of people mysteriously disappearing never to be heard from again while passing near the cave entrance. These stories may be based more on fact than fiction: they are similar in some respects to UFO abduction reports. Because of its huge size, remote location, and unique geological structure, Golondrinas would be an ideal UFO base. Naturally camouflaged caves in other parts of the world may serve as excellent natural bases, way stations, and ‘depots’ for UFOs.
“An underground nuclear test called the ‘Schooner Experiment’ conducted in December, 1968, substantiates the theory that caves in North and South America are intimately linked. In this test, a 35- kiloton nuclear bomb was exploded under the desert of Nevada. Five days after the test, the radiation level rose from 10 to 20 times in Canada, 1000 miles away from the Nevada test site! The only way the radioactive dust could have traveled that far is through an interconnected system of caves extending all the way from Nevada to Canada!”
Executive Summary:
The Underground Highway — How America’s Cave Networks Provide Natural Infrastructure for Clandestine Bases
Erich A. Aggen Jr.’s 1991 SEARCH Magazine article maps the intersection between America’s vast, largely unexplored cave systems and the hypothesis that non-human intelligences have established underground bases using natural cavern infrastructure. The article documents the Typhlitis cave fish’s range across six states as proof of a single interconnected cavern system beneath the central United States, describes Mexico’s Sotano de las Golondrinas as a potential natural base site, and presents the 1968 Schooner nuclear test — whose radiation traveled 1,000 miles underground to Canada — as direct evidence that North American cave systems extend across continental distances.
The piece positions the sheer inaccessibility and unexplored volume of American cave systems as the critical variable: with so few active spelunkers covering such enormous territory, the likelihood of accidental discovery of any subterranean installation is vanishingly small. Natural caverns hundreds of feet in every dimension already exist — rooms large enough to house tens of thousands of people. As Aggen frames the strategic calculus: “Naturally camouflaged caves in other parts of the world may serve as excellent natural bases, way stations, and ‘depots’ for UFOs.”
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