Sierra Madre Occidental Sierra Madre Occidental The Sierra Madre Occidental is a major mountain range system of the North American Cordillera, that runs northwest–southeast through Northwestern and Western Mexico, and along the Gulf of California. The Sierra Madre is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, Central America, South America and Antarctica. The Spanish name "sierra madre" means "mother mountains" and "occidental" means "western" in English, with these being the "Western Mother Mountains". To the east, from the Spanish "oriental" meaning
Alan (given name) the Gaelic name appear in early records British records; the Latin form "Ailenus" was recorded by Adomnán (died 704). Another similar-looking word in Irish is "álainn" and Scottish Gaelic "àlainn", which means "beautiful". There are numerous variations of the name in English. The variants "Allan" and "Allen" are generally considered to be derived from the surnames "Allan" and "Allen". The form Allan is used mainly in Scotland and North America. In England, the given names "Allan" and "Allen" are considerably less popular than "Alan". However, in America all three are generally about the same in popularity. "Alun" is an old