How did Pueblo farmers use irrigation along the Rio Grande?

Following the migration of Ancestral Pueblo peoples to the Rio Grande valley around 1300 CE, they established new communities in locations where they could implement gravity-based irrigation works to support their agricultural practices.12

While earlier Ancestral Pueblo groups in the Four Corners region primarily utilized check dams—low stone walls designed to slow and divert water from seasonal rivulets to increase soil moisture—the move to the Rio Grande valley allowed for more structured irrigation strategies. These gravity-based systems enabled the cultivation of crops in the river valley, which remained a central economic activity for the people as they transitioned into the modern Pueblo period.12

It is important to note that while the Hohokam culture is well-known for constructing extensive irrigation canals in the Gila basin, the Ancestral Pueblo peoples adapted their agricultural techniques to their specific environments, moving toward gravity-based systems as they settled along the Rio Grande.2