What is the name of the main mountain system of Mexico?
Geography of the Philippines in the east. Western Luzon is known for its beaches, surf spots and historic towns. Nestled between the Cordilleras in the east and the Sierra Madre mountain ranges in the west is the Cagayan Valley, also the name of the administrative region which it covers. Through its center runs the country's longest river, the Cagayan, flowing in a northward direction before emptying its waters in the Luzon Strait at the town of Aparri. The Cordilleras and Caraballos, together with the Sierra Madre Range, form the main mountain system in Northern Luzon. The Cordilleras consists of 2, sometimes 3, mountain ranges
Name of Mexico of the country is the "United Mexican States" (), since it is a federation of thirty-two states. The official name was first used in the Constitution of 1824, and was retained in the constitutions of 1857 and 1917. Informally, "Mexico" is used along with "Mexican Republic" ("República Mexicana"). On 22 November 2012, outgoing Mexican President Felipe Calderón proposed changing the official name of the country to "México". Anahuac (meaning land surrounded by water) was the name in Nahuatl given to what is now Mexico during Pre-Hispanic times. When the Spanish conquistadors besieged México-Tenochtitlan in 1521, it was almost completely destroyed.