Huelva (wĕlˈvä) [key], city (1990 pop. 141,002), capital of Huelva prov., SW Spain, in Andalusia, on the Odiel River above its junction with the Río Tinto. A busy port with copper, sulfur, and cork exports, it also has fishing, shipbuilding, oil refining, and summer resort industries. A Roman aqueduct supplies the city with water. Nearby La Rábida monastery, where Columbus made his plans, is a summer university.