“ GUADIANA (anc. Anas, Moorish Wadi Ana) , a river of Spain and Portugal. The Guadiana was long believed to rise in the lowland known as the Campo de Montiel, where a chain of small lakes, the Lagunas de Ruidera (partly in Ciudad Real, partly in Albacete) , are linked together by the Guadiana Alto or Upper Guadiana. ”