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Riotinto Mines | History & Facts | Britannica - Encyclopedia Britannica
Roman Mining in the Rio Tinto area - Visit-Andalucia.com
Riotinto-Nerva mining basin - Wikipedia
Mining in Roman Britain - Wikipedia
Romans | History of Rio Tinto Mines | Andalucia.com
Minas de Riotinto - Official Andalusia tourism website
History - Rio Tinto
Rio Tinto Mines - History | Andalucia.com
Rio Tinto Mines | Mining area in Huelva province - Andalucia.com
The Roman Mines at Riotinto | The Journal of Roman Studies