Provinces of Argentina became provinces in 1951. Misiones did so in 1953, and Formosa, Neuquén, Río Negro, Chubut and Santa Cruz, in 1955. The last national territory, Tierra del Fuego, became the Tierra del Fuego, Antártida e Islas del Atlántico Sur Province in 1990. Argentina is a federation of twenty-three provinces and one autonomous city, Buenos Aires. Provinces are divided for administration purposes into departments and municipalities, except for Buenos Aires Province, which is divided into partidos and "localidades". Buenos Aires City itself is divided into communes ("comuna") and non-official neighbourhoods ("barrios"). Provinces hold all the power that they chose not to delegate
Catamarca Province the Snow-Covered Summits of Aconquija, and the San Francisco Pass. The road over the San Francisco Pass, an endeavor developed during the Castillo Administrations (1991–2003) at a high cost in public funds has failed to bring trade and tourism to the underdeveloped Tinogasta county. Cultural attractions include the city of Catamarca, the archaeological park "Las Huellas del Inca", prehistoric petroglyphs, local music, handcrafts and wines. Major highways include Ruta 33 from Catamarca 98 km south to San Martin, 38 from Catamarca north via San Pedro 228 km to Tucuman, 60 north-west from Córdoba Province 577 km from La Guardia north-west