Nestled in the high country of northern New Mexico, the small town of Dulce appears unremarkable at first glance. With a population of roughly 900, situated above 7,000 feet on the Jicarilla Apache Indian Reservation, it features one major motel and a handful of stores. Far from a bustling resort or tourist destination, Dulce is quiet—perhaps deceptively so. According to longstanding claims, this sleepy community conceals one of America’s most extraordinary alleged secrets: a joint government-alien biogenetic laboratory buried deep beneath Archuleta Mesa, connected to a vast subterranean network said to honeycomb the planet.
Reports describe the Dulce Underground Base as a multi-level facility where the upper levels are reportedly under U.S. military control, while the lower levels are allegedly managed by Inner Earth beings or extraterrestrial entities. The base is claimed to serve as a site for bizarre experiments on both humans and animals. Proponents of these accounts point to its connection with the Los Alamos research facilities via an underground “tube-shuttle,” a straight-line construction that would logically place the base in proximity to known landmarks when mapped against the region’s geography.
Infrastructure and Cover Stories
Construction of supporting infrastructure reportedly began in 1947 with the building of a road near the base, ostensibly for a lumber company. Notably, no lumber was ever transported along this route, and the road was later destroyed. Power for the facility is said to come primarily from Navajo Dam, with a secondary source—and possible additional entrance—at El Vado. Several lakes in the vicinity were created through government grants framed as assistance for local Native American communities.
These details have fueled speculation among researchers attempting to pinpoint the exact location using maps and deductive reasoning. The alleged use of advanced tunneling technology lends further intrigue. A September 1983 issue of Omni magazine featured a color drawing of “The Subterrene,” a Los Alamos-developed, nuclear-powered machine capable of boring through rock by melting stone into molten form, which then cools to create a smooth, glazed tunnel lining. Questions remain about the handling of displaced molten material and the technology’s subsequent development.
Cattle Mutilations and Physical Evidence
The mysteries surrounding Dulce gained wider attention through a series of cattle mutilations in the 1970s. New Mexico State Police Officer Gabe Valdez investigated multiple cases, including incidents on the Manuel Gomez ranch located 13 miles east of Dulce. Between 1976 and June 1978, Gomez lost four cattle to the phenomenon. In one notable experiment on July 5, 1978, Valdez, Gomez, and retired scientist Howard Burgess examined approximately 120 head of cattle under ultraviolet light after passing them through a squeeze chute. They discovered a “glittery substance” on the right side of the neck, right ear, and right leg. Laboratory analysis by Schoenfeld Clinical Laboratories in Albuquerque revealed potassium levels up to 70 times above normal, along with elevated magnesium.
UFO sightings have frequently coincided with these events. Strange lights and aerial phenomena have been reported in areas where mutilated carcasses were discovered. Valdez himself reportedly observed unidentified aircraft at a rate of roughly one every two nights, even years later. During a visit in April 1988, investigator William H. Hamilton III accompanied Valdez to sites including the Gomez Ranch, roads near the Navajo River, and the imposing Archuleta Mesa. Landing tracks and crawler marks were noted near mutilation sites.
The Paul Bennewitz Connection
A central figure in the Dulce narrative is Paul Bennewitz, president of Thunder Scientific Labs, located adjacent to Kirtland Air Force Base in Albuquerque. In the early 1980s, Bennewitz reported photographing UFOs over the Manzano Weapons Storage Area at Kirtland AFB. A Kirtland incident report from October 28, 1980, documented his activities. He claimed to have established electronic communication with entities at an underground base beneath Archuleta Mesa and even viewed aliens on a video screen.
Bennewitz’s work drew significant attention. Researcher William Moore has suggested that government agents may have engaged in a disinformation campaign, feeding Bennewitz information to discredit or neutralize his claims. Whether his reported communications were genuine or part of such an operation remains a subject of debate. If Bennewitz served as a primary source for Dulce stories, efforts to discredit him could represent a strategic move to undermine public interest in the entire narrative.
Enduring Enigma
Despite decades of reports—from cattle mutilations and aerial sightings to claims of subterranean laboratories and advanced tunneling—the Dulce Base remains unproven. Official channels have offered no confirmation, and skeptics attribute many accounts to rumor, misidentification, or deliberate misinformation. Yet the convergence of witness testimonies, physical anomalies, and the region’s documented history of secretive government activity continues to captivate researchers and UFO enthusiasts alike.
Dulce’s quiet surface belies the profound questions lurking beneath Archuleta Mesa. Whether the alleged base represents a genuine intersection of human and non-human intelligence, a complex cover operation, or something else entirely, the story endures as one of America’s most persistent and unsettling UFO mysteries—one where scientific curiosity, national security, and the unknown remain inextricably linked. As new generations examine the evidence, the shadows beneath the mesa may yet yield further revelations.