Paleolithic Art, Roucadour cave Themines, Quercy, Lot, France. Attributed to the oldest phase of Paleolithic Art in Quercy, c. 28,000-24,000 years BP. All known prehistoric sites that have been discovered, have trails that lead to near and distant hematite deposits. Historians have deduced that the impetus behind all mining activities was a need for ochre pigments. Cave dwellers might have traveled as far as 25 miles to obtain iron earth pigments for their paint in the Lascaux area.