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See also:GUADIANA (anc. Anas, Moorish See also:Wadi See also:Ana) , a See also:river of See also:Spain and See also:Portugal . The See also:Guadiana was See also:long believed to rise in the See also:lowland known as the Campo de Montiel, where a See also:chain of small lakes, the Lagunas de Ruidera (partly in See also:Ciudad Real, partly in See also:Albacete), are linked together by the Guadiana See also:Alto or Upper Guadiana . This stream flows See also:north-westward from the last See also:lake and vanishes underground within 3 M. of the river Zancara or Giguela . About 22 m . S.W. of the point of disappearance, the Guadiana Alto was believed to re-emerge in the See also:form of several large springs, which form numerous lakes near the Zancara and are known as the " eyes of the Guadiana " (los ojos de Guadiana) . The stream which connects them with the Zancara is called the Guadiana Bajo or See also:Lower Guadiana . It is now known that the Guadiana Alto has no such course, but flows underground to the Zancara itself, which is the true " Upper Guadiana." The Zancara rises near the source of the Jilcar, in the See also:east of the tableland of La See also:Mancha; thence it flows westward, assuming the name of Guadiana near Ciudad Real, and reaching the Portuguese frontier 6 m . S.W. of See also:Badajoz . In piercing the Sierra Morena it forms a See also:series of foaming rapids, and only begins to be navigable at Mertola, 42 M. from its mouth . From the- neighbourhood of Badajoz it forms the boundary between Spain and Portugal as far as a point near Monsaraz, where it receives the small river Priega Munoz on the See also:left, and passes into Portuguese territory, with a southerly direction . At Pomarao it again becomes a frontier stream and forms a broad See also:estuary 25 M. long . It enters the Gulf of See also:Cadiz between the Portuguese See also:town of See also:Villa Real de Santo See also:Antonio and the See also:Spanish Ayamonte, after a See also:total course of 510 M. its mouth is divided by sandbanks into many channels . The Guadiana drains an See also:area of 31,940 sq. m . Its See also:principal tributaries are the Zujar, Jabalon, Matachel and Ardila from the left; the Bullaque, Ruecas, Botoa, Degebe and Cobres from the right . The GUADIANA MENOR (or Guadianamenor, i.e . "Lesser Guadiana ") rises in the Sierra See also:Nevada, receives two large tributaries, the Fardes from the right and Barbata from the left, and enters the See also:Guadalquivir near Ubeda, after a course of 95 M . |
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