2.5 euro 2010 Portugal, Prehistoric Rock-Art Site of the Côa Valley

The Prehistoric Rock-Art Sites of the Côa Valley are open-air Paleolithic archaeological sites located in a region of northeastern Portugal, along the Portuguese-Spanish border.

In the late 1980s, the engravings were discovered in Vila Nova de Foz Côa. The site in situated in the valley of the Côa River, and comprises thousands of engraved drawings of horses, bovines and other animal, human and abstract figures, dated from 22,000 to 10,000 years BCE. Since 1995 a team of archaeologists have been studying and cataloging this pre-historical complex and a park was created to receive visitors.