Guadiana

<p>The Guadiana River  is an international river defining a long stretch of the <a href="/facts/Portugal-Spain_border/UyBap6xC">Portugal-Spain border</a>, separating <a href="/facts/Extremadura/RMkwR0bW">Extremadura</a> and <a href="/facts/Andalusia/nkw5oWrL">Andalusia</a> (Spain) from <a href="/facts/Alentejo/73bIEXjD">Alentejo</a> and <a href="/facts/Algarve/Yr8ovvYS">Algarve</a> (Portugal). The river's basin extends from <a href="/facts/La_Mancha/DnFCF3wD">la Mancha</a> and the eastern portion of <a href="/facts/Extremadura/RMkwR0bW">Extremadura</a> to the southern provinces of the Algarve; the river and its tributaries flow from east to west, then south through Portugal to the border towns of <a href="/facts/Vila_Real_de_Santo_Ant%C3%B3nio_(parish)/lq7Ce4v8">Vila Real de Santo António</a> (Portugal) and <a href="/facts/Ayamonte/3JQR2Ej3">Ayamonte</a> (Spain), where it flows into the <a href="/facts/Gulf_of_C%C3%A1diz/5HBWCBtB">Gulf of Cádiz</a>. With a course that covers a distance of 829 kilometres (515 mi), it is the fourth-longest in the <a href="/facts/Iberian_Peninsula/ztFXI8zt">Iberian Peninsula</a>, and its hydrological basin extends over an area of approximately 68,000 square kilometres (26,000 sq mi) (the majority of which lies within Spain).
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Guadiana open-in-new

Guadiana