Pampas in cities, as industrialization picked up after the 1930s. As a result, Argentina's history of immigration in Buenos Aires Province is typically associated with cities and urban life, unlike in Entre Ríos Province and Santa Fe Province, where European immigration took on a more rural profile. Pampas The Pampas (from the , meaning "plain") are fertile South American lowlands that cover more than and include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos and Córdoba; all of Uruguay; and the southernmost Brazilian State, Rio Grande do Sul. The vast plains are a natural region, interrupted only
Union of South American Nations connections of the ports to Bolivia and more internal parts of Argentina, Peru And Brazil. The Pacific Highway, between Peru and Brazil, began to be built in September 2005, financed 60% by Brazil and 40% by Peru, and was completed in December 2010. The South American Energy Ring will interconnect Argentina, Brazil, Chile, Paraguay and Uruguay with natural gas from various sources, such as the Camisea Gas project in Peru and the Tarija gas deposits in Bolivia. Although this proposal has been signed and ratified, political and economic difficulties in Argentina and Bolivia have delayed this initiative, and to this