A 3,000-year-old monumental site, discovered in Mexico in the state of Tabasco, is reshuffling the cards on the beginnings of the Mayan civilization. Long invisible to the naked eye, Aguada Fénix was only revealed in 2017 thanks to LIDAR, a laser detection technology. This massive complex, although built without stones or pyramids, exceeds in size some of the largest Mesoamerican cities.
According to a study led by Takeshi Inomata (University of Arizona) and Verónica Vázquez López (University College London), published in the journal Science Advances, it is a large-scale representation of the cosmos, materialized through oriented axes, ritual pits and colored pigments. In the absence of any sign of elite or central power, this discovery deeply questions the political, social and symbolic foundations of the first Mayan societies.
Monumental architecture revealed by LIDAR
Long invisible to the naked eye, the Aguada Fénix site was only discovered in 2017 using airborne remote sensing technology called LIDAR (Light Detection and Ranging). This method makes it possible to map the ground surface despite vegetation or modern developments. It was decisive. Indeed, Aguada Fénix is located under agricultural land in the state of Tabasco, in southeastern Mexico, near the border with Guatemala.
The site is dated between 1050 and 700 BC. This makes it the oldest known monumental site of the Mayan civilization, well predating centers like Tikal or Copán. It extends over an area of 9 by 7.5 kilometers. Its central platform has 3.6 million cubic meters of earth. Axes are organized in a cross, visible only from the air.
The central structure includes a large flat space, raised about 15 meters, with no trace of stone construction. This impressive volume of earth moved corresponds to more than 10 million days of work, according to the team's estimates.
© Inomata et al., 2025
Map of Aguada Fénix produced from lidar data, the white lines indicating the north-south and east-west axes of the site. The plateaus, causeways, corridors, canals and lagoon are represented in different colors.
The absence of marked relief or walls is significant. The structure was not designed to visually dominate the surroundings like later pyramids. Its goal: to organize the ritual space on a horizontal plane, with symbolic axes and functional connections between ceremonial areas. The site also includes raised ceremonial causeways, excavated corridors and canals. Some remained unfinished, suggesting limits in the organization of the site despite its scale.
A cosmology materialized in the landscape
Aguada Fénix is not only distinguished by its size, but by the symbolic significance of its architectural layout. The study describes the site as a “cosmogram,” a spatial representation of the cosmos according to Mesoamerican conceptions. This term refers to an organization of the world according to cardinal axes and cosmic principles, inscribed in the earth.
In the center of the large main platform, archaeologists uncovered a two-level cruciform pit, dug directly into the ground. At the bottom of this structure was a ritual cache containing several objects arranged with a precision that leaves no doubt as to their meaning. The researchers found mineral pigments associated with the cardinal directions. Azurite blue in the north, malachite green in the east, ocher yellow in the south, and a red shell in the west point. This is, according to Inomata, cited by ScientificAmerican“
the first time these color and direction associations have been observed in physical form at such an ancient site “.
Nearby, other ritual objects were arranged in a cross. There are figurines in jade and green stone, notably representing a crocodile and birds. These elements, combined with marine shells and pigments, form a coherent symbolic system. It links natural elements, directions of space and the principles of life and creation.
© Takeshi Inomata
Jade ornament representing a woman giving birth.
The orientation of the site itself is intended to be revealing. The east-west axes align with the sunrises of October 17 and February 24, dates separated by 130 days. Exactly half of the 260-day Mesoamerican ritual calendar, used by the Mayans and Aztecs. This correspondence suggests that the builders linked time and space in a complex cosmological logic.
A society without a king but capable of immense projects
Unlike the great classical cities like Palenque or Tikal, Aguada Fénix presents no trace of visible political or religious hierarchy. No statue of a king, no royal tomb, no palace. For archaeologists, this constitutes a strong indication of a social model based on collective cooperation rather than centralized authority.
“ There are no signs of coercion or strong hierarchical organization “, insists Inomata. This absence is all the more striking as the construction site required a massive workforce. It is estimated that several hundred or even thousands of people were mobilized for several years, without metal tools or draft animals.
© Takeshi Inomata
The cache containing the oriented pigment deposits.
The researchers argue that the shared ideology, articulated around common rituals and cosmological beliefs, may have been sufficient to motivate such mobilization. Construction would have taken place during the dry season, when farming communities were available. This dynamic would also have favored meetings between groups, economic exchanges and social alliances, particularly matrimonial ones.
According to Andrew Scherer, professor at Brown University, cited by
CNNthis site illustrates a trend that is still little studied: “ Egalitarian societies capable of producing monumental works, without a visible leader but with a functional social organization “. This model contrasts sharply with ancient civilizations of the Old World, such as Egypt or Mesopotamia, which were often structured around vertical power.
For David Stuart (University of Texas at Austin), this absence of leading figures does not exclude the presence of specialists. He mentions, at LiveScienceconnoisseurs of the calendar and the stars, capable of designing a plan consistent with cosmic principles. Knowledge was not absent, but shared differently. This model, documented here for the first time on this scale, challenges the idea that the great works of the past required a dominant elite to exist.
A unique window into a pivotal moment in Mayan civilization
The period between 1100 and 700 BC. BC still remains poorly documented in Mesoamerica. Particularly with regard to the emergence of social and religious structures. Aguada Fénix is located precisely at this hinge, in a phase preceding the appearance of writing, dynasties and city-states.
The interest of the site also lies in its experimental nature. Some canals were started but never completed, and some structures show adjustments during construction. This suggests a phase of trial and error in collective organization, without a fixed master plan. Despite this, the whole presents an overall coherence, a sign of a unified vision of the project, without this coherence being able to be attributed to a single authority.
The hydraulic infrastructures, such as the canals and the 193,000 m³ dike, do not seem to have had any agricultural or logistical use. They probably served symbolic or ceremonial functions, linked to water as a cosmic element. The fact that they were never completed suggests organizational limitations, probably related to the seasonal or voluntary nature of the workforce.
The site was abandoned around 700 BC. B.C. But we find no signs of violent destruction or transition to a more hierarchical structure there. This could reflect a change in socio-political model on a regional scale. Aguada Fénix then bears witness to the beginnings of Mesoamerican social dynamics. At the time when the principles that would found the entire classical Mayan world were being developed.
According to James Aimers (SUNY Geneseo), this exemplary case illustrates “
the importance of collective dynamics in the first phases of development of great civilizations “. This alternative model now deserves to be taken into account in its own right in the interpretation of ancient sites.
Source: Takeshi Inomata et al., “Landscape-wide cosmogram built by the early community of Aguada Fénix in southeastern Mesoamerica”. Sci. Adv. 11, eaea2037 (2025).
With an unwavering passion for local news, Christopher leads our editorial team with integrity and dedication. With over 20 years’ experience, he is the backbone of Wouldsayso, ensuring that we stay true to our mission to inform.
