Segura

Segura
Location of the river within Spain.
Country	Spain
Basin features
Main source	Fuente Segura, Sierra de Segura, Jaén 1,413 m (4,636 ft)
River mouth	Guardamar del Segura, Alicante 0 m (0 ft)
Basin size	19,525 km2 (7,539 sq mi)
Physical characteristics
Length	325 km (202 mi)
Discharge	Average rate: Cieza: 26.3 m3/s (930 cu ft/s)

Segura (Spanish: [seˈɣuɾa], Valencian: [seˈɣuɾa]; Latin: Thader, Arabic: شقورة, War-Alabiat) is a medium-sized river in southeastern Spain. It has its source in the Sierra de Segura.

The river begins at Santiago Pontones (province of Jaén), passes Calasparra, Cieza, Murcia, Beniaján, Orihuela, Rojales and ends in the Mediterranean Sea near Guardamar del Segura in the province of Alicante. Some of its tributaries are the Mundo (which starts near Riópar), the Alhárabe (which starts in Moratalla), the Mula and the Guadalentín.

The alluvial plain is called the Vega del Segura and is a very productive agricultural region growing a wide variety of fruit, vegetables and flowers. The Vegas are divided into three areas: Alta, Media and Baja (upper, medium, and lower).

By the 1990s, the Segura had become one of the most polluted rivers in Europe, due to the canning industry and urban and agricultural residues originating in the densely populated area in the medium and lower areas of the basin. This fact combined with low or extreme low flows in the same areas –the agricultural use of water and summer drought could reduce the mean discharge to just around 2 to 3 m³/s in Murcia city– made more difficult to dilute pollutants.