In 2022, extreme drought caused the water levels of the Mosul Dam reservoir to drop—revealing a 3,400-year-old Mitanni Empire city buried in the mud.

In 2022, extreme drought caused the water levels of the Mosul Dam reservoir to drop—revealing a 3,400-year-old Mitanni Empire city buried in the mud.


April 15, 2026 | Allison Robertson

In 2022, extreme drought caused the water levels of the Mosul Dam reservoir to drop—revealing a 3,400-year-old Mitanni Empire city buried in the mud.


When the Water Dropped… Fast

In early 2022, northern Iraq was dealing with a serious drought. Rain barely showed up, rivers were shrinking, and things were getting tense. To keep farms alive, officials started pulling more water from the Mosul Dam reservoir. And as the water kept dropping… something unexpected started to peek through the mud.

Archaeology siteFactinate

Advertisement

At First, It Didn’t Look Like Much

Near the Tigris River, close to a place called Kemune in the Kurdistan Region, people noticed strange shapes along the shoreline. At first glance, it just looked like rocks and broken walls. But as more water disappeared, it became clear—this wasn’t random. This was something big.

Roughly 100 kilometres from its source, Tigris is already an important river for agriculture just outside Diyarbakır.Bjorn Christian Torrissen, Wikimedia Commons

Advertisement

A Whole City, Just Sitting There

Within days, archaeologists realized what they were looking at: an entire ancient city rising out of the reservoir. Not just a few ruins—a full layout with buildings, walls, and structure. And the craziest part? It had been sitting underwater for decades, completely hidden.

Bottom outlet of the Mosul dam, near the hydro power plantThis image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain., Wikimedia Commons

Advertisement

Was This City Always Hiding Here?

Here’s the twist—this wasn’t completely unknown territory. Archaeologists already knew the Tigris River region was packed with ancient sites. But this specific city near Kemune? It was never fully explored or understood before the Mosul Dam was built in the 1980s. So yes, they knew something was there… just not this.

The Tigris River passes east of Diyarbakir and flows below the 11th century Ten-Eyed Bridge before turning southeast toward Baghdad.David Stanley, Wikimedia Commons

Advertisement

Why Build a Dam Over an Ancient City?

It sounds wild, but it happens more than you’d think. When the Mosul Dam was built in the 1980s, the focus was on water storage, irrigation, and electricity—not archaeology. Northern Iraq is full of buried history, much of it invisible from the surface. So in a way, they knew they were flooding ancient land… they just didn’t know exactly what they were covering up.

The hydroelectric power plant at Mosul Dam with four surge tanks in backgroundThis image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain., Wikimedia Commons

Advertisement

A City Lost Before It Was Even Found

There were some limited archaeological surveys before the area was flooded, but nothing close to a full excavation. Once the reservoir filled, the site disappeared completely. For decades, this city sat underwater, unstudied and almost forgotten—like a time capsule no one had opened yet.

Tigris in Êlih-HafizbiniyanDurzan cirano, Wikimedia Commons

Advertisement

Cue the Archaeologists

Once word got out, a team moved in fast. The excavation was led by Dr Ivana Puljiz from the University of Freiburg and Dr Hasan Qasim from the Kurdistan Archaeology Organization. They knew this wasn’t something you casually take your time with—the water could come back anytime.

Universitätsklinikum Freiburg, Chirurgieuser:Joergens.mi, Wikimedia Commons

Advertisement

A Race Against the Clock

This wasn’t your typical slow, careful dig. This was more like archaeology under pressure. The team had a limited window before the reservoir refilled, which meant long days, quick decisions, and a lot of urgency.

Original caption states,United States Army Corps of Engineers, Wikimedia Commons

Advertisement

A City From a Forgotten Empire

What they uncovered turned out to be a 3,400-year-old city from the Mitanni Empire. If you’ve never heard of the Mitanni, you’re not alone. They were a powerful kingdom in northern Mesopotamia between about 1550 and 1350 BC—but they’ve always been a bit of a mystery.

Mitanni; Cylinder seal; Stone-Cylinder Seals-InscribedPharos, Wikimedia Commons

Advertisement

Not Just a Small Settlement

This wasn’t some tiny village either. The scale of the buildings suggested this was a major regional center—possibly even an important administrative hub. In other words, this place mattered.

Mitanni in Nusaybin, TürkeiDamak, Wikimedia Commons

Advertisement

Walls That Shouldn’t Still Exist

One of the biggest surprises? The condition of the buildings. Some mudbrick walls were still standing several meters tall. That’s wild, considering they’d been underwater since the 1980s. Normally, mudbrick doesn’t survive like that—it just dissolves over time.

Mud brick city in Ait Benhaddou, MoroccoAls M. Trnc, Wikimedia Commons

Advertisement

Why 2022 Was Such a Big Deal

The real shock in 2022 wasn’t just that the city existed—it was what condition it was in. When the water dropped, archaeologists weren’t expecting to see structures this intact. It went from “maybe there are ruins here” to “this is a fully preserved ancient city” almost overnight.

View of the Tigris River in Hasankeyf, seen from the CitadelHtkava, Wikimedia Commons

Advertisement

From “Maybe Ruins” to “Major City”

Earlier glimpses of the site didn’t show much. But in 2022, everything changed. Suddenly, archaeologists could see the full layout—palace structures, fortification walls, storage buildings. What once looked like scattered remains turned into something much bigger and more important.

File:Mitanni map.pngDbachmann, Wikimedia Commons

Advertisement

A Palace Starts Taking Shape

As they kept digging, archaeologists uncovered what looked like a large palace complex. According to Dr Ivana Puljiz, the size and layout suggested it belonged to someone important—likely a ruler or high-ranking officials managing the region.

Archaeologist digging with hand trowel, recovering ancient pottery object from an archaeological site.Microgen, Shutterstock

Advertisement

This City Had It All

The team didn’t just find one building. There were storage rooms, fortification walls, and even signs of multi-story structures. This wasn’t a basic settlement—it was organized, planned, and clearly built with purpose.

Excavations at Tell Sabi AbyadS L Pei, Wikimedia Commons

Advertisement

A Name From History Might Finally Fit

There’s a strong possibility this city is Zakhiku, a place mentioned in ancient texts but never fully located. If confirmed, this discovery could solve a long-standing historical mystery that researchers have been trying to figure out for years.

Aerial photo of Mosul dam, hydroelectric project and lake in Iraq.Ali Haidar Khan, Wikimedia Commons

Advertisement

So… Why Was It Underwater?

The ruins had been submerged since the Mosul Dam was built in the 1980s. When the reservoir filled, the city disappeared completely. For nearly 40 years, it sat underwater, untouched and out of sight.

Overhead, black and whiteThis image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain., Wikimedia Commons

Advertisement

It Took a Crisis to Bring It Back

Ironically, it was the drought—a modern problem—that revealed this ancient one. As water levels dropped in 2022, the city finally reappeared for the first time in decades.

water levels at a reservoir upstream of Mosul Dam.NASA, Wikimedia Commons

Advertisement

A Once-in-a-Lifetime Opportunity

Dr Hasan Qasim made it clear—this was a rare chance that might not come again anytime soon. The team had to document everything as quickly as possible before the site vanished again.

Close-up of stacked binders filled with documents for office or educational use.Pixabay, Pexels

Advertisement

Somehow, It Was Still Standing

One of the biggest mysteries is how well everything held up underwater. Experts believe layers of sediment may have protected the structures, acting like a natural shield over time.

Aerial view of the Mosul Dam, Iraq.Rehman Abubakr, Wikimedia Commons

Advertisement

Then Things Got Really Interesting

While exploring one of the buildings, archaeologists found several large ceramic jars. At first, nothing too exciting—just storage containers. But then they looked inside.

Painted pottery jar, polychrome, geometric designs, of the Jemdet Nasr style. Jemdet Nar period, 3100-2900 BCE. From Ur, Iraq. Iraq Museum, BaghdadOsama Shukir Muhammed Amin FRCP(Glasg), Wikimedia Commons

Advertisement

And Then Came the Biggest Surprise

Even with all the buildings and structures, nothing prepared the team for what they were about to find. This is the moment where the discovery went from impressive… to truly historic.

JamesDeMersJamesDeMers, Pixabay

Advertisement

More Than 100 Tablets

Inside those jars were over 100 cuneiform tablets, some still sealed in clay envelopes. These weren’t just random objects—they were written records, dating back to the Middle Assyrian period.

Clay Tablet with Cuneiform Writing- Nebuchadnezzar, King of Justice
Mesopotamia 1500-539 BC Gallery, British Museum, London, England, UK. Complete indexed photo collection at WorldHistoryPics.com.Gary Todd, Wikimedia Commons

Advertisement

Fire Accidentally Saved Them

Here’s the strange twist: the tablets survived because the building they were in had burned down. The heat baked the clay, preserving the writing. So what was once destruction actually ended up protecting them for thousands of years.

Cuneiform tablets preserved  in a museum.Phillip Tellis, Wikimedia Commons

Advertisement

Messages From a Lost World

Researchers are still translating the tablets, but early findings suggest they contain administrative records—basically paperwork from ancient times. Think inventory lists, management records, that kind of thing… just 3,000 years older.

Tablets
Clay
2 × 1 3/4 in. (5.08 × 4.45 cm)
Gift of Zhirair Benenyan (M.79.106.2)
Art of the Ancient Near EastRotatebot, Wikimedia Commons

Advertisement

Filling in the Gaps

This matters because the Mitanni Empire is still full of question marks. We know they were powerful, but we don’t fully understand how they operated. These tablets could help connect some of those missing pieces.

A large cuneiform inscription found on the south side of the Van Castle hill, four kilometres west of modern-day Van, in eastern Turkey. It's several metres tall and wide, 25 centuries old and the message comes from the Persian king Xerxes.
In Old Persian, Babylonian and Elamite, it says (roughly):Bjorn Christian Torrissen, Wikimedia Commons

Advertisement

Cover It Up—On Purpose

Before leaving, the team did something unusual. They covered the entire site with plastic sheets and gravel. It sounds odd, but it’s actually a way to protect the ruins once they go back underwater.

Limestone construction aggregate (6-10 mm) from a quarry in Alegia, Basque Country.Emadrazo, Wikimedia Commons

Advertisement

And Just Like That… Gone Again

Not long after the excavation wrapped up, water levels started rising again. Slowly but surely, the city disappeared back beneath the reservoir.

The Mosul Dam in Iraq.This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain., Wikimedia Commons

Advertisement

A City That Comes and Goes

For now, the site is hidden again—but not forever. If water levels drop in the future, there’s a chance it could reappear… bringing even more secrets with it.

The Mosul Dam in Iraq.This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain., Wikimedia Commons

Advertisement

The Final Reveal: No Gold, Just History

No treasure chests. No piles of gold. Instead, something way more valuable—a lost city, preserved buildings, and over 100 ancient tablets that could completely change what we know about the Mitanni Empire.

Sumerian; Cuneiform tablet; Clay-Tablets-InscribedPataliputra, Wikimedia Commons

Advertisement

You May Also Like:

A violent storm in Orkney, Scotland ripped the grass off a large mound—uncovering a remarkably preserved 6,000-year-old Neolithic village.

In 2025, a typhoon tore through the Alaskan coastline uncovering thousands of ancient artifacts from a lost Yup’ik village buried for centuries.

Sources: 1, 2, 3, 4, 5


READ MORE

Hermione Granger Facts

Bewitching Facts About Hermione Granger

Hermione Granger might just be the most misunderstood character in the entire Potter universe. It starts with her name (most people pronounce it wrong) and goes from there.
January 3, 2024 Miles Brucker
Extremesports Internal

The 10 Best Extreme Sports Destinations In The U.S.

Discover the top 10 extreme sports destinations in the U.S. Dive into the adrenaline-pumping world of adventure sports, understand their growing allure, and find out where to experience the ultimate thrills across the country.
September 16, 2023 Sammy Tran

The 10 Best States To Live Off-Grid—And 5 Of The Worst

Florida may offer an abundance of sunshine, but the state is not exactly renewable energy-friendly. Solar panels can cost upwards of $20,000—and that’s just the beginning.
February 19, 2025 Allison Robertson
Forbidden Places Internal

10 Forbidden Places You're Not Allowed To Visit

Discover 10 of the world's most intriguing off-limits destinations. From guarded military bases to sacred sites, uncover the mysteries behind these forbidden places you're not allowed to visit.
August 27, 2023 Sammy Tran