The study investigates the provenance of granitic grindstones from the Cogotas I archaeological site in Castronuño, Valladolid, focusing on their geological and geochemical characteristics. The grindstones, made from granitic material, were found in a burial context and are believed to have been sourced from a distant area. The research employs a combination of petrographic, mineralogical, and geochemical analyses to determine the origin of the material. The results indicate that the granitic material is likely sourced from the area around Peñausende, Zamora, which is approximately 50 km away. The study proposes a general methodological approach for determining the provenance of archaeological materials, combining various analytical techniques to assess the geological and geochemical characteristics of the material. The findings suggest that the grindstones were transported from a local source, with distinct geochemical signatures indicating different sources for each grindstone. The study highlights the importance of integrating geological and archaeological data to understand resource management and economic practices in prehistoric societies. The methodology proposed can be applied to other archaeological sites to determine the provenance of materials and to understand the movement of resources and people in prehistoric contexts.The study investigates the provenance of granitic grindstones from the Cogotas I archaeological site in Castronuño, Valladolid, focusing on their geological and geochemical characteristics. The grindstones, made from granitic material, were found in a burial context and are believed to have been sourced from a distant area. The research employs a combination of petrographic, mineralogical, and geochemical analyses to determine the origin of the material. The results indicate that the granitic material is likely sourced from the area around Peñausende, Zamora, which is approximately 50 km away. The study proposes a general methodological approach for determining the provenance of archaeological materials, combining various analytical techniques to assess the geological and geochemical characteristics of the material. The findings suggest that the grindstones were transported from a local source, with distinct geochemical signatures indicating different sources for each grindstone. The study highlights the importance of integrating geological and archaeological data to understand resource management and economic practices in prehistoric societies. The methodology proposed can be applied to other archaeological sites to determine the provenance of materials and to understand the movement of resources and people in prehistoric contexts.