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 San Cristóbal Rock-shelter and the Sierra de Cantabria setting.

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Fumier sequence of San Cristóbal. Image courtesy of J. Fernández-Eraso.

  • San Cristóbal Rock-shelter sits at 920 m.a.s.l. on the southern side of the Sierra de Cantabria mountain range, which is located at the contact of the Basque-Cantabrian Basin and the Upper Ebro Basin.

  • The excavation and sampling of the site for interdisciplinary studies took place between 2007 and 2016, unearthing a 3.5 m deep fumier sequence which earliest evidence dates back to the Early Neolithic.

  • GeoFodder explores the formation processes of the whole fumier sequence of the site, which encompasses remarkable deposits of the Chalcolithic period, an evidence rarely documented in SW Europe.

Burned heap of fumier deposits during excavation.

Image courtesy of J. Fernández-Eraso.