PYRENEAN MOUNTAINS, or PYRENEES, are the mountains which divide France from Spain, and are the most celebrated in Europe, except the Alps. They reach from the Mediterranean sea as far as the ocean, and are about 212 miles in length. They have different names, according to the different places wherein they stand. Mount Perdu, the highest of the Pyrenees, has an elevation of 1763 French toises, or 11,270 English feet.