A 2,700-year-old irrigation system near Armavir in Armenia is giving researchers new insight into how ancient rulers turned dry land into fields, gardens, and vineyards. The study, led by Nazarij Buławka and published in “Antiquity,” shows how water management helped shape one of the region’s most important ancient cities.
An ancient city depended on water
Armavir sits on the edge of the Araks Valley. In ancient times, the site stretched for about 3.5 kilometers (2.17 miles). That made it one of the largest archaeological complexes in Armenia.
The city’s early growth was closely tied to the kingdom of Urartu. The powerful state ruled parts of the South Caucasus and eastern Anatolia from the ninth century B.C. to about 590 B.C.
During the reign of King Argishti I, the Araks Valley came under Urartian control. The king founded the fortress city of Argishtikhinili between two natural hills. Each hill held a citadel. One served political power. The other had religious importance.
Ancient inscriptions say five irrigation channels once carried water to the city and nearby farmland. They supplied fields, gardens, and vineyards. One inscription said the land had previously been unused. Researchers said that the detail suggests water shortages may have limited settlement before Urartian rule.
Satellite images reveal hidden canals
The new study set out to find traces of that ancient water network. Researchers used modern satellite images, Cold War-era spy satellite photos, and elevation data to study the land around Argishtikhinili.
The team used images from Landsat 5 and Sentinel-1. It also studied archival CORONA and GAMBIT satellite photographs from the 1960s and 1970s. These older images helped researchers see the landscape before modern farming and development changed many surface features.
Researchers also used digital elevation models to find small changes in the ground. These changes can reveal buried or eroded canals, levees, and abandoned river channels.
The team mapped the features using ArcGIS software. The goal was to separate modern irrigation works from older water-management systems.
More than 1,000 kilometers mapped
The results were large in scale. Researchers identified more than 1,019 kilometers (633.1 miles) of water-management features in the study area.
Modern canals make up about 429 kilometers (266.5 miles). Old mountain streams or former Araks River channels made up about 420 kilometers (260.9 miles). Researchers also found about 36 kilometers (22.3 miles) of deeply cut ancient channels.
Another 134.6 kilometers (83.6 miles) may represent ancient canals. Many of those possible canals sit near Argishtikhinili.
Researchers said the evidence points to a long, evolving irrigation system. Some parts may date to the Urartian period. Others may have been repaired, reused, or expanded in later centuries.
A system used for generations
The history of the irrigation system remains difficult to trace. It likely stayed in use until the fall of Urartu around 590 B.C. Irrigation appears to have returned during the Hellenistic period, when Armavir grew again.
Some canal sections may preserve earlier routes. Others may have been built later. Armavir remained important into the medieval period, which means the system may have changed many times.
That long history makes the network hard to date. Ancient canals may lie beneath later ones. Some modern canals may follow older paths. Farming has also damaged or hidden many surface traces.
Still, the study shows that irrigation was central to life in the Ararat Plain. Without engineered water channels, much of the land may not have supported large-scale farming.
Water helped build a city
Researchers said the canals helped make the area suitable for intensive agriculture. They may also help explain why Argishtikhinili became such an important Urartian center under Argishti I.
The study found that many levees run toward the northeast. Researchers said some may connect to dry stream beds or larger water systems. Others may have drawn water from branches of the Araks River.
Buławka and the research team said more fieldwork is needed. Future studies could help confirm which canals are Urartian and which belong to later periods. Researchers also need more data to link the water system with nearby settlements.
For now, the findings show how ancient engineering transformed the landscape. The irrigation system did more than move water. It helped build a city, support farming, and shape the history of Armenia’s Ararat Plain.
https://greekreporter.com/2026/05/28/irrigation-system-ancient-armenia-engineering/
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