It is estimated that fewer than 80 Spanish settlers lived in the area before 1600, but later prosperity increased due to the use of indigenous and slave labor, and the Jesuit presence in the region.It was from Mendoza that San Martín and other Argentinian and Chilean patriots organized the army with which they won the independence of Chile and Peru.Tourism, wine production, and more recently the exploitation of commodities such as oil[6] and uranium[7] ensure Mendoza's status as a key regional centre.Important suburbs such as Godoy Cruz, Guaymallén, Las Heras and Luján de Cuyo have in recent decades far outpaced the city proper in population.The Museo Nacional del Vino (National Wine Museum), focusing on the history of winemaking in the area, is 17 kilometres (11 miles) southeast of Mendoza in Maipú.The Fiesta Nacional de la Vendimia (The National Grape Harvest Festival) occurs in early March each year.Unique to Mendoza are the exposed stone ditches, essentially small canals, which run alongside many of the roads supplying water to the thousands of trees.Supervised by the nation's Ministry of Public Works, the project was commissioned to architect Alfredo Israel, and its plans were approved in October 1923.Its façade included a Neoclassical frontis featuring four Corinthian columns on a green marble base, a rococo frieze, the provincial escutcheon in bas-relief, and a balustrade above.The design for the interiors was based on those prevailing in Italian opera houses, and the formal vestibule is overlooked by grand marble steps leading to the concert hall.[12] A heritage railway, El Tren del Vino (The Wine Train), is being planned which will also provide local transportation; it will run through wine-producing districts of Mendoza.Mendoza's development was helped partly due to its position at the start of the Transandine Railway linking it to Santa Rosa de Los Andes in Chile.A journey from Buenos Aires to Chile involved two breaks-of-gauge, and therefore two changes of train, one at Mendoza, and the other at Santa Rosa de Los Andes.[19][20][21][22] Vintner Nicolas Catena Zapata is considered the pioneer of high-altitude growing and was the first, in 1994, to plant a malbec vineyard at 5,000 feet above sea level in the Mendoza region.