A vast ancient water management system has been uncovered near the ancient city of Argishtikhinili in Armenia, shedding new light on the engineering capabilities of the Urartian Kingdom more than 2,700 years ago.
Archaeologists from Poland and Armenia have identified traces of an extensive network of canals, riverbeds and irrigation infrastructure in the fertile Ararat Basin, revealing what they describe as one of the region's most ambitious ancient development projects.
The discovery was made by researchers from the University of Warsaw and the National Academy of Sciences of the Republic of Armenia with satellite imagery, historical aerial photos and advanced remote sensing techniques. The report was published in the Journal Antiquity.
The study covered the area around Argishtikhinili, a major Urartian centre, established during the reign of Argishti I in the 8th century BC.
Researchers have identified over 1,000 kilometres of water-related features throughout the landscape. These include about 135 kilometres of ancient canals, nearly 420 kilometres of former riverbeds and streams, around 429 kilometres of modern irrigation channels, and 36 kilometres of ancient canals.
The findings suggest that the Urartians transformed what had once been dry and underutilised land into a productive agricultural heartland capable of supporting a growing population and strengthening the kingdom's economy.
Ancient inscriptions discovered in the region indicate that five major canals supplied water to Argishtikhinili and its surrounding agricultural lands, including fields, orchards and vineyards. One inscription records that the area had remained uncultivated before the construction of the irrigation system, highlighting the importance of water management to the kingdom's prosperity.
The scale of the newly documented network points to a highly organised and technically sophisticated undertaking.
"This skill was brought by the Urartians, who understood perfectly well that the lands around the recently founded city of Argishtikhinili were potentially very fertile," said Krzysztof Jakubiak. "Unfortunately, the lack of access to water prevented their intensive use. The royal administration had the appropriate means to change this situation, and thus a network of canals appeared in the valley landscape, thanks to which these areas became the granary of the entire kingdom."
According to the researchers, constructing such an extensive irrigation system would have required advanced engineering knowledge. Canal builders needed to calculate gradients precisely to ensure water could flow over long distances without pumps while also controlling erosion and maintaining the channels.
The research also suggests the existence of a specialised administrative system responsible for overseeing water distribution and infrastructure maintenance. Such a large-scale enterprise would have required substantial labour resources and effective management.
To reveal the old network, scientists combined modern satellite data with imagery captured by American CORONA and GAMBIT reconnaissance satellites during the Cold War. These photos from the 1960s and 1970s show the country before heavy farming and modern irrigation had changed the landscape.
The researchers found that traces of ancient canals can still be detected through subtle variations in soil moisture, vegetation growth and ground elevation. Digital terrain models which could identify changes of a few centimetres were particularly useful for locating buried channels and embankments.
Even in light of this discovery, questions still surround the age of many of the structures. Some of the canals are thought to date back to the Urartian period, but some of them are thought to have been built centuries later after the kingdom was dismantled around 590 BC.
"Dating irrigation canals is extremely difficult because they were constantly silting up during use," Jakubiak said. "To determine when they were first created, it is necessary to drill into the canal beds and recover sediments containing organic material that can be radiocarbon dated."
Further fieldwork and analysis will be needed to establish a detailed chronology of the irrigation system and the settlements it supported. However, the discovery already provides compelling evidence of the scale and sophistication of ancient water management in the Ararat Basin and highlights the crucial role irrigation played in the rise of one of the ancient Near East's most powerful kingdoms.
Header Image Credit : Krzysztof Jakubiak
Sources : PAP - https://doi.org/10.15184/aqy.2026.10344