Almourol is an

islet An islet is a very small, often unnamed island. Most definitions are not precise, but some suggest that an islet has little or no vegetation and cannot support human habitation. It may be made of rock, sand and/or hard coral; may be permanent ...

in the

Tagus river The Tagus ( ; es, Tajo ; pt, Tejo ; see below) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales near Teruel, in mid-eastern Spain, flows , generally west with two main south-westward sections, to e ...

, in the

civil parish In England, a civil parish is a type of administrative parish used for local government. It is a territorial designation which is the lowest tier of local government below districts and counties, or their combined form, the unitary authority ...

of Praia do Ribatejo, Center Region,

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

. The small island lies in the middle of the Tagus, a few meters below its confluence with the

Zêzere River The Zêzere () is a river in Portugal, tributary to the Tagus. It rises in the Serra da Estrela, near the '' Torre'', the highest point of continental Portugal. The Zêzere runs through the town Manteigas, runs through Belmonte, passes south of t ...

. The

castle of Almourol The Castle of Almourol is a medieval castle atop the islet of Almourol in the middle of the Tagus River, located in the civil parish of Praia do Ribatejo, from the municipal seat of Vila Nova da Barquinha, in Portugal's Centre Region. The cast ...

, a Portuguese National Monument, dominates the islet. It stands opposite the town of

Tancos Tancos is a Portuguese ''freguesia'' ("civil parish"), located in the municipality of Vila Nova da Barquinha. The population in 2011 was 243,

References

Islands of Portugal Tagus River islands of Europe {{island-stub