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'''Las Médulas''' was the most important gold mine in the [[Roman Empire]]. In the 1st century A.D. the Roman Imperial authorities began to exploit the [[gold]] deposits of this region in north-west [[Spain]], using a technique based on hydraulic power. After two centuries of working the deposits, the [[Romans]] withdrew, leaving a devastated landscape. Since there was no subsequent industrial activity, the dramatic traces of this remarkable ancient technology are visible everywhere as sheer faces in the mountainsides and the vast areas of tailings, now used for [[agriculture]].<ref>http://whc.unesco.org/en/list/803</ref>
== See also ==
*[[List of World Heritage Sites in Europe and North America]]
== External Links ==
*[http://www.fundacionlasmedulas.info/english_version/index_eng.html Official website of the city of Las Médulas]
== References ==
{{reflist}}
[[Category:Spain]]
[[Category:Mining]]
[[Category:World Heritage Sites]]