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Similar Douro, Minho Province, Prehistoric Rock‑Art Site of the, Museu do Douro, Tagus |
Alto Douro was one of the 13 regions of continental Portugal identified by geographer Amorim Girão, in a study published between 1927 and 1930.

Together with Trás-os-Montes it became Trás-os-Montes e Alto Douro Province.



References
Alto Douro (region) Wikipedia(Text) CC BY-SA