Pech Merle is a cave which opens onto a hillside at Cabrerets in the Lot département of the Occitania region in France, about 32 km by road east of Cahors. It is one of the few prehistoric cave painting sites in France that remain open to the general public. Extending over 2 kilometres over two levels, of which only 1,200 m (3,900 ft) are open to the public, are caverns, wells and sloping tunnels, the walls of which are painted with dramatic murals dating from the Gravettian culture (some 25,000 years BC). Some of the paintings and engravings, however, may date from the later Magdalenian era (16,000 years BC).
This cave was created over 2 million years ago by an underground river, cutting channels which were later used by humans for shelter and eventually for mural painting. The galleries are mostly dry, 10 meters wide on average. The height under the vault is between 5 and 10 meters high.