During the early fall of 1940, four teenage boys were exploring the hills above the Vezere River near the town of Montignac in the Dordogne Valley of south central France when they stumbled on an amazing archaeological discovery. Exploration of its vast interior revealed about six hundred paintings and almost 1,500 engravings. Subject matter of the cave paintings and engravings are mostly animals, birds and rhinoceros and bison as well as cattle and deer and horses, and hundreds of signs, quadrilateral shapes and dots and other patterns we will surely never decipher. Colors in the cave are blacks and yellows, reds and whites, and were produced from charcoal and manganese and ocher, which were probably recovered locally.