Ardila
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/57/R%C3%ADo_Ardila.jpg/200px-R%C3%ADo_Ardila.jpg)
The Ardila (Spanish pronunciation: [aɾˈðila]; Portuguese pronunciation: [ɐɾˈðilɐ]) is a river of Spain and Portugal and a tributary of the Guadiana. Its length is 166 kilometres (103 mi). A portion of the river forms the Portugal–Spain border.
38°12′N 7°28′W / 38.200°N 7.467°W