The discovery o new deposits o various minerals in the central an northren aurie (frae Sonora tae the soothren province o Mexico) alloued New Spain gradually occupee a privilegit position, especially in the extraction o siller. Minin alloued the development o associatit activities, especially the manufacturs an agricultur, that turned the Bajío region or the valleys o Mexico an Puebla in prosperous agricultural regions an incipient industrial activity.