Prehistoric Rock-Art Sites in the Côa Valley, Portugal

Portugal-23, originally uploaded by Abhishek's Received Postcards.

The Côa Valley Paleolithic Art site is one of the largest known open air sites of Paleolithic art.
In the late 1980s, the engravings were discovered in Vila Nova de Foz Côa, in northeastern Portugal. 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.