This valley of the Repocura River was the location of the densely populated Rupucura rehue and was the location of the principal placer gold mines of the old city of La Imperial before the Mapuche Uprising of 1598.
By the bank of the Repocura river Fort de la Encarnación was built in 1666 by the Royal Governor of Chile Francisco de Meneses Brito.
A fort and a mission with the title of Repocura or Repucura were founded in December 1694, replacing to the Fort de la Encarnación destroyed during a Mapuche rising earlier that year.
Its Mapudungun name according to Diego de Rosales meant rock road, from the words rypu "way" and cura, "stone".
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