The geographical location of Great Mendoza (Mendoza, Argentina), marked off by apparent isolation from the decisions-center in the country (Buenos Aires), is characterized by relational elements that have conferred it a crossroads-position with respect to the Buenos Aires-Santiago de Chile axis. Its location in the northern oasis of the province is of great significance. On one hand, it boasts the largest population concentration in the arid fringe in western Argentina. On the other hand, it is situated along one of the most important commercial corridors in Latin-America, namely, the Mercosur, and builds a communication nexus between the Mercosur member countries and the Pacific.