Ayaz-Kala

Wind is the first thing you notice here. It moves across the open plain without anything to stop it, and it carries fine grit that settles on your sleeves and your lips. Underfoot, the ground is pale and crusted, and it breaks softly with each step. Above you, on the crest of a hill, brown walls stand against a very wide sky. They look less like a building and more like part of the hill itself.

This is Ayaz-Kala, a group of ancient fortresses in Karakalpakstan, the autonomous republic in the far northwest of Uzbekistan. You are standing on the edge of the Kyzylkum Desert, whose name means Red Sands. This region was once part of Khorezm, an old civilisation that grew up along the lower course of the Amu Darya river. The river is not visible from here, but its water once made this whole landscape possible.

Ayaz-Kala is not one fortress but three. They are usually numbered by archaeologists. The first stands high on the hilltop, the oldest and most dramatic. The second sits on a lower rise nearby and is later in date. The third is a large walled enclosure at the foot of the hill. Together they cover a long span of time, and walking between them is like reading the region's story out of order.

The upper fortress is the one most visitors climb. It was built more than two thousand years ago, in the ancient period of Khorezm. Its outline follows the shape of the hilltop, and the walls were once lined with towers. The builders did not use stone. They used sun-dried mud brick and pakhsa, which is clay packed down in layers. These are the same humble materials that local farmers used for their homes for centuries afterwards.

Here is a detail many visitors miss. Look closely at the wall faces and you can still see the edges of individual bricks. In places the layers of rammed clay show as faint horizontal bands, like the rings of a tree. Mud brick should not last two thousand years. It survives here because rain is rare, and the dry air slows the erosion. The desert that makes life hard is also the reason these walls are still standing.

The walls held more than a single defensive line. Archaeologists have described corridors inside the thickness of the walls, where defenders could move and shoot through narrow slits. The entrance was also designed to slow down any attacker. Instead of a straight gate, it forced people along a turning, protected approach. Anyone trying to force their way in would have been exposed to the defenders above for every step of that route.

One surprise is how empty the inside of the upper fortress seems. There are few traces of permanent houses within the walls. Some researchers think the fortress was mainly a frontier stronghold and a refuge, a place where people and herds could shelter when danger came out of the desert. Khorezm sat between settled farmland and the open steppe, and forts like this one guarded that boundary. Its value came from its height and its view.

The second fortress tells a later chapter. It dates to the early medieval period, many centuries after the hilltop walls were raised. Excavations found the remains of a fortified residence there, with rooms arranged around a central space. It was probably the seat of a local lord who controlled the farmland around it. Below, the third and largest enclosure held further buildings. Fields and irrigation canals once spread across the plain where today you see mostly scrub.

Much of what we know comes from Soviet-era archaeology. From the late 1930s, a long-running expedition led by the scholar Sergei Tolstov surveyed and excavated the ancient sites of Khorezm. The team worked across this desert for decades, and aerial photography helped them spot buried walls and old canals. Their work showed that Ayaz-Kala belonged to a dense network of fortresses. Many of them are now grouped together for visitors under the name Elliq-Qala, which means Fifty Fortresses.

The name Ayaz-Kala has its own story, but treat it as folklore rather than history. According to one popular local tale, the fortress is named after Ayaz, a man of humble origin who rose to greatness and built these walls. Versions of the tale differ from teller to teller. The ancient builders left no inscription with their name for the place. So the name you hear today is a later layer added by the people who lived around the ruins.

Now turn around and look out from the top. On a clear day you can see salt flats, low ridges, and a lake nearby called Ayaz-Kul. The view helps you understand why someone chose this hill. Any movement on the plain would be visible from a long way off. In the early morning or late afternoon, the low sun throws the walls into sharp relief, and the brown clay turns warm and golden.

The climb itself is part of the experience. The path is steep, sandy and loose in places, so take it slowly and watch your footing. There is little shade anywhere on the site, and summer heat here can be fierce. In winter the wind turns sharp and cold. Near the foot of the hill, a yurt camp offers visitors a place to rest, eat, and sometimes stay overnight under a very dark desert sky.

Before you leave, stand still for a moment and listen. You will likely hear the wind, perhaps a bird, perhaps nothing at all. The walls in front of you were shaped by hand from the same earth you are standing on. People patted this clay into place, guarded this hilltop, and watched this same horizon. As you walk back down, notice how the fortress slowly sinks into the shape of the hill again.