Segura is a medium-sized river in southeastern Spain. It has its source in the Sierra de Segura. The 325-km long river begins at Santiago Pontones, passes Calasparra, Cieza, Blanca, Murcia, Beniaján, Orihuela, Rojales, and flows into the Mediterranean Sea near Guardamar del Segura in the province of Alicante. Some of its tributaries are the Mundo, the Alhár…Segura is a medium-sized river in southeastern Spain. It has its source in the Sierra de Segura. The 325-km long river begins at Santiago Pontones, passes Calasparra, Cieza, Blanca, Murcia, Beniaján, Orihuela, Rojales, and flows into the Mediterranean Sea near Guardamar del Segura in the province of Alicante. Some of its tributaries are the Mundo, the Alhárabe, the Mula, and the Guadalentín.