#river definition
- Amu Darya — A major river in Central Asia, formed by the confluence of the Vakhsh and Panj rivers, flowing for over 2,400 kilometers through Tajikistan, Afghanistan, Turkmenistan, and Uzbekistan. Known in antiquity by the Greek name Oxus, its course represents a historical geographical and political boundary, supplying extensive agricultural oases through massive irrigation systems that have caused a dramatic reduction in its flow toward the Aral Sea over recent decades.