What is "jucar"

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The Júcar or Xúquer is a river on the Iberian Peninsula of Spain. The river runs for approximately 509 km from its source at Ojuelos de Valdeminguete, on the eastern flank of the Montes Universales, Sistema Ibérico. Its most important tributary is the Cabriel.

River Júcar flows first southward and then eastward through the towns of Cuenca, Alcalá del Júcar, Cofrentes, Alzira, Sueca and Cullera, a town located near its mouth into the Gulf of Valencia, Mediterranean Sea. It crosses the provinces of Cuenca, Albacete and Valencia

In 1982 the river Júcar broke the Tous's reservoir, causing the biggest flood in Spanish history with a flow of 16,000 cubic metres per second, killing more than 30 people. The flood was called La pantanada de Tous.