Guadiana River geographical name
River, Spain and Portugal. One of the longest in the Iberian Peninsula, it flows 483 mi (778 km) through south-central Spain and southeastern Portugal, forming parts of the countries' borders, to the Gulf of Cádiz. Its headwaters rise in the mountains of Spain's Cuenca province; west of Daimiel they form marshy lakes, known as Ojos del Guadiana (Eyes of the Guadiana), a noted wildfowl sanctuary. As the river continues west, it cuts a series of gorges through the Toledo Mountains, now the site of several dams that provide hydroelectric power.
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