The
Cauca River is a river in
Colombia that lies between the
Occidental and
Central cordilleras. From its headwaters in southwestern Colombia near the city of
Popayán, it joins the
Magdalena River near
Magangué in
Bolívar Department, and the combined river eventually flows out into the
Caribbean Sea. It has a length of to its junction with the Magdalena, for a total length of . from origin to seamouth. The river is under the supervision of the
Corporación Regional del Cauca and the
Corporación Autonoma Regional del Valle del Cauca, and is navigable for above its junction with the Magdalena.