The
Odiel is a river in the
Atlantic basin in southern Spain, more precisely in the
province of
Huelva,
Andalusia. It originates at Marimateos in the
Sierra de Aracena at an elevation of above sea level. At the Punta del Sebo, it joins the
Rio Tinto to form the Huelva Estuary. Its principal tributaries are the Escalada, Meca, Olivargas, Oraque, Santa Eulalia, and El Villar. Its basin covers .