The two most prominent concentrations of rock art in the Alps are found at Mont Bégo in France and the valleys of Valcamonica and Valtellina in Italy, both of which far outnumber other areas for the amount of art that they contain. At Mount Bego, in southwest France, near the Italian border, over 30,000 illustrated figures have been discovered in the valleys and outliers surrounding the mountain, situated on the high-altitude slopes far above the agricultural land. Archaeologists have dated to the images to the Copper and Bronze Ages, between 2500 and 1700 BCE, because many of the figures are depicted holding daggers and halberds which are stylistically consistent with this period. Similarly, many of the images depict oxen and ploughshares, meaning that they must have been produced following the adoption of agriculture during the Neolithic. It is believed that they all date from the same period, because they are all stylistically consistent and are in a similar state of preservation.