Archaeologists Just Discovered an Untouched Mayan City What the Jungle Was Hiding Is Terrifying

Deep in southern Mexico, in the state of Campeche, there is a forest so thick and so remote, that some parts of it have no roads, no trails, and no people, for kilometers in every direction. It's called the Calakmul Biosphere Reserve. Jaguars live there, howler monkeys scream from the treetops, and under the canopy, hidden for more than a thousand years, there was a city. This year, a team of archaeologists cut their way through the jungle with machetes and walked into it. Pyramids. Plazas. Carved stone monuments covered in hieroglyphs. And something that almost never happens in Maya archaeology anymore. The site was largely untouched. No looters had stripped it. No tourist had ever stood there. They named it Minin Bay. In the Yucatec Maya language, roughly, there is no road. I'm Steve. Today we're going to explore this lost city. How it was found, what its monuments say, and why the moment it comes from, the final years before the Great Maya Collapse, is one of the most terrifying chapters in the history of the Americas. Let's start with how you find a city that's been hidden for a thousand years. For most of the history of archaeology, finding ruins in the Maya lowlands meant walking, following rumors from local people, hacking through the forest. You could stand 20 meters away from a pyramid and not see it. Because after centuries in the jungle, a pyramid looks like a hill covered in trees. That changed with LIDAR. LIDAR stands for Light Detection and Ranging. A plane flies over the forest firing hundreds of thousands of laser pulses every second at the ground. Most of the pulses hit leaves and branches. But some slip through tiny gaps in the canopy and hit the ground, and bounce back. Computers then take away all the vegetation and draw a map of the bare earth beneath. When archaeologists started using LiDAR in the Maya region, the results were stunning. In Guatemala, in 2018, a huge LiDAR survey revealed tens of thousands of previously unknown structures—houses, palaces, causeways, defensive walls, farm terraces. The ancient Maya world turned out to be far more crowded and connected than anyone had imagined. And in Mexico, LiDAR has been revealing one surprise after another. In 2024, researchers announced a city they named Valeriana, also in Campeche, found by an archaeology student who looked at LIDAR data that had been collected for an environmental survey. A whole city, with pyramids and plazas, sitting near a highway, where people drove past every day. Minin Bay is part of that same revolution. The site was spotted in airborne LIDAR data years ago, but it sat in such a remote part of the reserve that nobody had gone to see it on the ground. Until now, the expedition was led by Ivan Shpreich, a Slovenian archaeologist who has spent decades exploring the most remote corners of the Calakmul region. Working with authorization from Mexico's National Institute of Anthropology and History, INAH, Shpreich is known for going where others don't. His team has found several lost Maya cities in this forest over the years. To reach Minanbay, the team had to open trails through dense forest. They carried their supplies in. They worked in heat, humidity, and insects. In an area so isolated that the name they gave the city is a joke about the trip itself. There is no road, so what did they find when they got there? Minanbay covers an area of roughly 15 hectares, about 37 acres. At its heart is a pyramid temple, reported to be around 13 meters high, about 43 feet. Around it are plazas and buildings arranged in the kind of planned layout the Maya used for their ceremonial centers. But what makes Minanbay special are its monuments. The team recorded 14 carved stone monuments. which are tall carved stone slabs, and altars, which are round or flat carved stones often placed in front of them. The Maya used stelae, like public billboards and history books at the same time. Kings carved their portraits on them, along with hieroglyphic texts, recording their birth, their rise to power, their wars, their rituals. If you can read the glyphs, a stela can tell you who ruled a city, when, and who they fought. Some of the Minanbay monuments carry hieroglyphic inscriptions. The project's epigrapher, Octavio Esparza Holguín, an expert in reading Maya writing, studied them. One inscription appears to refer to the late 7th century, which would make it one of the earliest known texts in that part of the region. Other monuments seem to have been raised in a later period, known as the Terminal Classic, close to the time when cities across this region were being abandoned. There's also a detail that's a little chilling. Some reports describe one of the carved scenes as showing a decapitation, and one of the altars appears to have been intentionally broken, smashed, on purpose, a long time ago. Why would someone deliberately break a monument? In the Maya world, monuments weren't just art. They held the power of the rulers they showed. When a city was conquered or when a ruling family fell, people sometimes broke, defaced or buried the monuments of their enemies or their former kings. Destroying a stela could be like tearing down a statue of a fallen dictator. So a broken altar at Minanbay might be a clue. Something violent happened there. A war, an uprising, a change of rulers. Something that someone wanted to erase. And that brings us to why this moment in Maya history is so terrifying. To understand Minanbay, you need to know about Calakmul, not the reserve, the city. Calakmul was one of the two great superpowers of the classic Maya world, around the 6th to 8th centuries. Its kings belonged to a dynasty known by their emblem glyph, a snakehead. The Snake Kingdom, or Calakmul, Calakmul's great rival was Tikal, in what is now Guatemala. For generations, these two powers fought a long war, like a Maya version of a Cold War that often turned hot. They made alliances with smaller cities, installed puppet kings, and went to battle. Smaller cities like Minanbay were caught between them, sometimes as allies, sometimes as victims. Then, in the 8th and 9th centuries, something happened that historians still argue about. The classic Maya collapse. Across the southern lowlands, one great city after another stopped building monuments. Kings disappeared from the record. Populations shrank. Palaces were abandoned. By the end of the 9th and early 10th centuries, many of the great cities of the region were empty or nearly empty. The jungle started to grow over them. Imagine living through that. Your city had stood for centuries. Your kings claimed descent from the gods. And then, within a few generations, It all fell apart. What caused it? There isn't one answer. Researchers point to a combination of things. Endless warfare between cities, which became more frequent and more brutal. Severe droughts. Studies of lake sediments and cave formations in the region show periods of significantly reduced rainfall during this time. For a society that depended on rain and stored water, that was devastating. Too many people for the land to support, combined with deforestation and soil loss, and political breakdown. The divine kings promised to keep the world in order. When the rains failed and the wars kept coming, people may have lost faith in them. Monuments from the terminal classic, the very last period, like some of those at Minan Bay, are a window into that moment. They show cities still trying to carry on, still raising stones, still recording their rulers, even as the world around them was coming apart. And when people left, the jungle took everything. Within a few centuries, the plazas were forest floor. The pyramid became a hill. The monuments fell over and were buried in leaves. Let me tell you how we can even read what those stones say, because that's a story of its own. For centuries, Maya hieroglyphs were a complete mystery. When the Spanish arrived in the 1500s, Maya scribes were still writing books on bark paper, folded like accordions. But Spanish priests saw these books as pagan, and many were burned. The most infamous burning happened in 1562, when a friar named Diego de Landa ordered Maya books destroyed in the town of Mani. Only four Maya books are known to have survived to the present day. Ironically, the same Landa also wrote down a sort of alphabet of Maya signs, based on what a Maya informant told him. For a long time, scholars thought it was nonsense because Maya writing isn't an alphabet. But in the 20th century, a Russian scholar named Yuri Knorozov realized that Landa's list was actually showing sounds, syllables. Maya writing mixed signs for whole words with signs for syllables. Then, in the 1970s, a group of researchers at a conference in Palenque, Mexico, started reading the names and dates of the kings of that city. Over the next decades, more and more of the script was deciphered. Today, scholars can read a large part of Maya inscriptions. That's why a stela at Minan Bay matters so much. It's not just a carved stone. It's a page of history, written by the people who lived it, that we can now read. Maya writing also gives us their calendar. The Maya recorded dates using a system called the long count, which counted days from a starting point in the distant past. On many monuments, a date tells exactly when an event happened. Scholars can convert those dates into our calendar, sometimes down to the day. That's how archaeologists can say a monument at Minan Bay was carved in the late 7th century, or in the final decades before the collapse. Now picture what Minan Bay might have looked like at its height. The pyramid temple, covered in smooth plaster and painted bright red, rising above the plaza. Priests climbing its steps during ceremonies, the plaza packed with people during festivals, music from drums and conch shells, the smell of copal incense burning, nobles in feathered headdresses and jade jewelry, scribes and artists working on new monuments. Around the center, houses of ordinary families, cornfields and gardens, reservoirs to hold the precious rainwater through the dry season. The Maya of this region didn't have big rivers to rely on. In much of the Calakmul area, there are few permanent lakes or streams. Water came from the sky. The Maya built reservoirs, plastered plazas that channeled rainwater, and underground storage chambers. Their whole world depended on the rain coming on time. You can see why drought would be terrifying. If the rains failed year after year, the reservoirs dried up, crops failed, and the kings, who claimed they could talk to the gods and bring the rain, suddenly looked powerless. So why is Minan Bay so important now? Because it's untouched. Across the Maya region, looters have done enormous damage. For decades, they've dug tunnels into pyramids looking for jade and pottery, and cut carved faces off stelae to sell on the black market. Every looter's trench destroys information that archaeologists can never get back. At Minanbe, the team reported that the site appeared to be largely unlooted. That means the buildings and monuments are in their original context. The broken altar is where it was broken. The stelae lie where they fell. For archaeologists, that's like finding a crime scene that nobody has touched. But that same remoteness is the problem. Getting equipment into Mayan Bay is extremely hard. A full excavation would take years, a lot of money, and roads or at least proper trails. And opening the site to the world also opens it to looters. So the researchers have a delicate job. Study it carefully, record everything, and protect it. And it's not only archaeologists who are interested in this forest. The Calakmul Biosphere Reserve is one of the largest protected tropical forests in Mexico. It's part of a huge block of forest that stretches into Guatemala and Belize, sometimes called the Maya forest. It's home to jaguars, pumas, tapirs, spider monkeys, howler monkeys, and hundreds of species of birds. In 2014, the reserve, including the ancient city of Calakmul, was declared a UNESCO World Heritage Site, both for its nature and its cultural history. It was one of the first sites recognized for both. That's a fascinating twist. A thousand years ago, this area was crowded with Maya cities, farms, and roads. The forest was cut back to grow crops and build towns. After the collapse, the people left, and the forest grew back so completely that today it's one of the wildest places in Mexico. In a way, the jungle protected the ruins. It hid them from looters and developers for centuries. But today, the forest faces its own pressures. Roads, farming, logging, and new tourism projects are pushing into the region. Archaeologists and conservationists often find themselves on the same side, trying to protect both the forest and the ancient cities inside it. And the LiDAR keeps finding more. Every survey adds new sites to the map. Some researchers now estimate that, at its peak, the Maya lowlands may have supported millions of people, more than many scholars once thought possible in a tropical forest. LiDAR shows how they did it. Terraces on hillsides, raised fields in wetlands, canals, reservoirs and causeways connecting cities. A whole engineered landscape, now hidden under trees. Here's what I find most powerful about Menombe. For more than a thousand years, people lived and died around that pyramid. Kings raised monuments to their own glory. Scribes carved their names and their wars into stone. Someone stood in that plaza and swung a hammer to break an altar. Then everyone left, and the forest swallowed it whole. And now, a laser beam from an airplane, skimming over the trees, saw the shape of their world through the leaves. And a few people with machetes walked back in. We are living through the greatest age of discovery in Maya archaeology. With every LIDAR survey, the ancient Maya world gets bigger. There are likely many more Menombes out there, hidden under the canopy, waiting. Some of them may tell us what really happened in those last terrible decades before the collapse. Some may hold the names of kings no one has heard of in a thousand years, and all of them carry the same warning. A great civilization, with cities, science, writing, and astronomy, can fall. Drought, war, and a loss of trust can bring down kings who thought they were gods. If you want more discoveries like this, the lost cities and real history hiding under our planet's forests, subscribe to Daily Activities. And tell me in the comments, what do you think finally brought down the great Maya cities? I'll see you in the next one.