Corta Atalaya mine Low-poly 3D model

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Corta Atalaya is the largest open-pit mine in Europe[1] and was at one time the largest in the world.[citation needed] It is located within the city limits of Minas de Riotinto in the province of Huelva, autonomous community of Andalusia, Spain.[2] It is roughly elliptical in shape, 1,200 metres (3,900 ft) long, 900 metres (3,000 ft) wide, and 350 metres (1,150 ft) deep.[1][2][3] It was one of the most ambitious projects of the Rio Tinto Group.[citation needed] At its peak it employed 2,000 workers mining copper; it was actively mined until 1992.[4] Since at least 1994 it has been flooded up to the 16th ring. https://en.wikipedia.org/wiki/Corta_Atalaya