Mexico has an area of 761,610 mi2. The countries of Belize, Guatemala, and the United States of America border Mexico. The Gulf of California, also called the Sea of Cortés is one of the four bodies of water that border Mexico, the other three are the Pacific Ocean to the west, the Gulf of Mexico and the Caribbean Sea to the east, and southeast. Some of the major geographical features of Mexico include the The Sierra Madré Occidental that runs about 1255 kilometers south to the Rio Santiago where it runs into another mountain range called Cordillera Neovolcanica. The Sierra Madre Occidental averages 2249 meters in elevation, with the highest peak at 2987 meters. The climate in the mountains are mild. Summer temperatures are constant,