Puerto Rico, at its widest point, is 110 miles long from east to west and only 40 miles wide from north to south. The main mountain range, La Cordillera Central and the smaller cordilleras that run east-west through the center of the island are sparsely populated, but take up half of the available land. Most of the population lives in the narrow coastal band around the cordilleras. In the mountainous region above the city of Ponce in the south, slopes average 45 degrees and Cerro de Punta, the highest point of the island, at 4,393 feet, is only 14 miles from the coast.