The Door to Hell: Fifty Years of Fire in the Karakum Desert
How a Soviet drilling accident created a burning crater that reshaped our understanding of the Karakum
The Darvaza gas crater has burned nonstop since 1971 - a geological accident that became Central Asia's most surreal landmark. The science, history, and experience of standing at the edge.
You will smell it before you see it. A faint sulfurous edge sharpens as you approach on foot across cracked, sandy ground. Then you hear it - a low, steady roar, like a furnace door left open. And then you are standing at the rim, looking down into a pit filled with hundreds of small fires dancing across collapsed earth and rock. The heat pushes against your face. This is not a campfire. This is a geological event that has outlasted the Soviet Union.
How a Drilling Accident Became a Fifty-Year Fire
In 1971, Soviet geologists were prospecting for natural gas in the Karakum near the village of Darvaza. They set up a drilling rig over what they believed was a substantial gas deposit. The ground beneath the rig was not as stable as it appeared. The surface collapsed, swallowing the equipment and opening a massive sinkhole.
The collapse released large quantities of methane - a serious hazard for the environment and the small communities nearby. The geologists reportedly made a practical decision: set the gas on fire, expecting it to burn off within weeks. That was over five decades ago.
The details remain somewhat murky. Soviet-era records from remote Turkmen drilling operations were not kept with the care of a modern geological survey. Some accounts place the collapse in 1971, others in the early 1960s. The broad facts are consistent: a gas prospecting operation, a ground collapse, a decision to ignite, and flames that never stopped. The volume of natural gas feeding the crater was far greater than anyone anticipated.
What makes the Darvaza incident unusual is not that a gas deposit was ignited - controlled flaring is standard practice in the petroleum industry worldwide. What makes it unusual is the scale of the miscalculation. The engineers expected days or weeks of burning. They got decades. The gas field beneath the crater is part of one of the largest natural gas reserves in Central Asia, and the Darvaza vent taps into it through fractures that the original collapse opened wide.
The Geology Beneath the Flames
The Karakum Desert sits atop the Amu Darya Basin, one of the most gas-rich geological formations in Central Asia. Turkmenistan holds the world's fourth-largest proven natural gas reserves, and much of that gas lies beneath the Karakum's sand and clay.
The Darvaza crater formed in a layer of soft sedimentary rock - limestone, mudstone, and evaporite deposits laid down millions of years ago when this region lay beneath a shallow sea. These sediments are porous and mechanically weak, which is why the ground collapsed so readily under the weight of the drilling rig. The cavity that opened was not a new void - it was likely a pre-existing karst dissolution chamber, a natural underground space carved by water moving through soluble rock over geological time. The drilling operation simply punched through the thin ceiling.
Gas reaches the surface through a network of fractures in the rock. Some of these fractures existed before 1971; others were created or widened by the collapse itself. The result is not a single gas vent but hundreds of small ones scattered across the crater floor, each feeding its own flame. This is why the fire does not burn as a single column but as a shifting field of individual jets - blue at the base where combustion is hottest, orange and yellow at the tips where it cools.
The rate of gas release has not measurably diminished over fifty years, which tells geologists something important: the reservoir feeding the crater is either very large, under significant pressure, or both. Estimates of how long the gas could continue flowing range from decades to centuries. No one has drilled a monitoring well nearby to measure the reservoir precisely - the Darvaza crater is, scientifically speaking, an uncontrolled experiment that no one is formally studying.
What the Door to Hell Looks and Feels Like
Photographs do not prepare you for standing at the edge of the Darvaza gas crater. They capture the orange glow, the rough circular shape, the dark desert around it. What they cannot convey is the physicality of the experience.
The heat is the first thing. Even on a cold Karakum night - and between October and March, temperatures can drop below freezing - the air within ten meters of the rim is warm. At five meters, it is hot. At the very edge, it is nearly unbearable on exposed skin. The flames are not a single bonfire but hundreds of individual jets and flickers, some small and blue at their base, others tall and orange, rising from cracks and vents across the crater floor. The pattern shifts constantly. New flames appear; others die back. The effect is less like looking at a fire and more like looking into something alive.
The sound is a sustained, breathy roar. It fluctuates with the wind. On still nights it settles into a low hum. When gusts sweep the desert, the flames lean and surge, and the sound rises to something closer to a distant jet engine.
And the smell - natural gas is odorless, but the combustion byproducts and trace sulfur compounds give the air a distinctive sharpness. Not overpowering at the rim, but always present. A reminder that this is not a managed attraction but an active geological phenomenon.
How "The Door to Hell" Got Its Name
The name *Derweze* in Turkmen means "gate," and the crater has been called the "Door to Hell" or "Gates of Hell" by locals for decades - a description that feels accurate rather than dramatic when you stand above it at two in the morning. The nickname gained international traction after George Kourounis, a Canadian explorer, descended into the crater in 2013 as part of a National Geographic expedition - the first documented person to reach the bottom. He collected soil samples from the crater floor and found bacteria thriving in the extreme heat, a finding with implications for the study of extremophile life.
But the name had circulated among travelers and Turkmen communities long before Kourounis made his descent. What the expedition did was attach high-definition footage to a place most people had only seen in grainy photographs. Within a few years, the Darvaza gas crater became one of the most recognized images associated with Turkmenistan - a country that otherwise receives little international media coverage.
A Night at the Rim
The crater is worth seeing in daylight - a wide, smoking pit in otherwise featureless desert. But after dark, it becomes something else entirely.
Visitors camp on the eastern or southern rim, where the ground is stable and relatively flat. There are no facilities of any kind - no fences, no guardrails, no infrastructure. Tents go up on hard-packed sand and gravel, typically 30 to 50 meters back from the edge.
After sunset, the scene shifts. The crater becomes the only light source in a hundred-kilometer radius. The glow paints the underside of passing clouds a dull amber. Above, the Milky Way stretches across the sky in the kind of clarity that only deep desert without light pollution can produce. The temperature drops - you add layers - and the roar of the crater becomes background noise, almost meditative in its constancy.
There is a particular quality to the small hours at Darvaza. You wake at two or three in the morning, unzip the tent, and the glow is still there, seeping through the fabric. You walk to the rim and stand there, alone with the fire and the stars and the low rumble of burning gas. The flames have shifted since you last looked. The pattern is never the same twice. This is the part that stays with people - not the spectacle of arrival, but the quiet accumulation of hours spent beside something ancient and indifferent and beautiful.
Fifty Years of Fire and What They Mean
The Darvaza gas crater raises questions that no one has satisfactorily answered. How much gas has been lost to uncontrolled burning since 1971? Conservative estimates suggest billions of cubic meters - a significant economic loss for a country whose economy depends heavily on natural gas exports. In 2010, then-President Gurbanguly Berdimuhamedov visited the site and reportedly ordered the crater extinguished to stop the waste of resources. As of 2026, the crater is still burning. Whether the order was quietly abandoned, technically infeasible, or simply deprioritized remains unclear.
From an environmental perspective, the crater is a continuous point source of carbon dioxide and other combustion gases. In the global context of greenhouse emissions, it is a footnote - a single crater cannot compete with industrial-scale fossil fuel use. But it is a vivid, literal illustration of the concept: fossil carbon, stored underground for millions of years, released into the atmosphere by human activity. The fire at Darvaza is, in miniature, the story of the entire fossil fuel era.
Scientifically, the crater is an untapped research site. The extremophile bacteria Kourounis found on the crater floor suggest that life can persist in conditions far harsher than most biologists assumed. The gas dynamics - how the flow rate has remained stable over decades, what the subsurface fracture network looks like, whether the crater is slowly expanding - are questions that a properly funded geological survey could answer. None has been conducted. The crater burns, unstudied, in the middle of the desert.
And then there is the cultural dimension. The Darvaza gas crater is, alongside the white marble buildings of Ashgabat and the Akhal-Teke horse, one of the few images of Turkmenistan that the outside world recognizes. It has become a symbol of the country almost by accident - an unintended monument to Soviet-era resource extraction, now repurposed as the closest thing Turkmenistan has to an internationally famous natural attraction.
Visiting Darvaza
The crater is roughly 260 km north of Ashgabat, a four-to-five-hour drive. The last stretch is unmarked desert track requiring a 4x4. Most visitors arrange transport through a licensed Turkmen travel agency, which is also the most practical way to handle the required travel permits. The best season is October through April - summer temperatures exceed 45 degrees Celsius and make camping beside an enormous fire untenable. There are no facilities at the site; bring everything you need, carry everything out.
An Accident That Became a Landmark
The Darvaza gas crater was never supposed to exist. It was a mistake - a miscalculation by Soviet engineers who thought they were solving a small problem and accidentally created something permanent. Fifty years later, the fire they lit as a temporary fix has become one of the most recognizable geological sites in Central Asia.
There is something clarifying about standing at the edge of an event that was never meant to happen and has no planned end. The crater does not care about the engineers who created it, the government officials who want it closed, or the travelers who come to photograph it. It burns because the gas flows and the gas flows because the earth is fractured and the fractures connect to reserves laid down before humans existed. It will stop when the gas runs out or when someone finds a way to seal it. Until then, it burns.
That indifference is part of what makes the Darvaza gas crater extraordinary. It is not a monument built for anyone. It is not preserved for any purpose. It is simply a consequence - of geology, of accident, of time - and it happens to be one of the most arresting sights on the surface of the Earth.