Córdoba Province, Argentina in the context of La Rioja Province, Argentina

Mar Chiquita (in Spanish literally "Little Sea") or Mar de Ansenuza is an endorheic salt lake located in the northeast of the province of Córdoba, in central Argentina. The northeast corner of the lake also extends into southeastern Santiago del Estero Province. It is the largest of the naturally occurring saline lakes in Argentina. The lake is located in parts of five departments in the two provinces.

The lake is in the Argentine Espinal ecoregion.It occupies the southern part of a depression that measures about 50 miles/80 km (north–south) by 28 miles/45 km (east–west). Its surface area varies considerably, given its shallow depth (about 10 m), and ranges between 2,000 and 6,000 km (770 and 2,320 sq mi).

The Pampas (/ˈpæmpəz/; from Quechua pampa 'plain'), also known as the Pampas Plain, are fertile South American low grasslands that cover more than 1,200,000 square kilometres (460,000 sq mi) and include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos, and Córdoba; all of Uruguay; and Brazil's southernmost state, Rio Grande do Sul. The vast plains are a natural region, interrupted only by the low Ventana and Tandil hills, near Bahía Blanca and Tandil (Argentina), with a height of 1,300 m (4,265 ft) and 500 m (1,640 ft), respectively. This ecoregion has been changed by humans, especially since the release of animals like cattle, pigs, and especially sheep onto these plains.

The climate is temperate, with precipitation of 600 to 1,200 mm (23.6 to 47.2 in) that is more or less evenly distributed throughout the year, making the soils appropriate for agriculture. The area is also one of the distinct physiography provinces of the larger Paraná–Paraguay plain division.

Buenos Aires, officially the Buenos Aires Province, is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of the province and the province's capital until it was federalized in 1880. Since then, in spite of bearing the same name, the province does not include Buenos Aires city, though it does include all other parts of the Greater Buenos Aires metropolitan region, which include approximately three-fourths of the conurbation's population. The capital of the province is the city of La Plata, founded in 1882.

It is bordered by the provinces of Entre Ríos to the northeast, Santa Fe to the north, Córdoba to the northwest, La Pampa to the west, Río Negro to the south and west and the Autonomous City of Buenos Aires to the northeast. Uruguay is just across the Rio de la Plata to the northeast, and both are on the coast of the Atlantic Ocean to the east. Almost the entire province is part of the Pampas geographical region, with the extreme south often considered part of the Patagonia region.

Santiago del Estero (Spanish pronunciation: [sanˈtjaɣo ðel esˈteɾo]), also known simply as Santiago, is a province in the north of Argentina. Neighboring provinces, clockwise from the north, are Salta, Chaco, Santa Fe, Córdoba, Catamarca and Tucumán.

La Pampa (Spanish pronunciation: [la ˈpampa]) is a sparsely populated province of Argentina, located in the Pampas in the center of the country. Neighboring provinces are from the north clockwise San Luis, Córdoba, Buenos Aires, Río Negro, Neuquén and Mendoza.

Rubén Darío Carolini (29 April 1944 – 9 September 2023) was an Argentine paleontologist. He was the discoverer of the Giganotosaurus.

Carolini was born in Oncativo, Córdoba, on 29 April 1944, where he lived during his childhood and youth. At the end of the 1960s he began working as a mechanic on the construction site of the El Chocón dam in the Neuquén and later continued working at Hidronor S.A., the public company that managed the hydroelectric plant of that dam.

Santa Fe, officially Province of Santa Fe (Spanish: Provincia de Santa Fe, Spanish pronunciation: [ˈsanta ˈfe], lit. "Holy Faith") is a province of Argentina, located in the center-east of the country. Neighboring provinces are from the north clockwise Chaco (divided by the 28th parallel south), Corrientes, Entre Ríos, Buenos Aires, Córdoba, and Santiago del Estero. Together with Córdoba and Entre Ríos, the province is part of the economico-political association known as the Center Region.

Santa Fe's most important cities are Rosario (population 1,193,605), the capital Santa Fe (369,000), Rafaela (100,000), Reconquista (99,000) Villa Gobernador Gálvez (74,000), Venado Tuerto (69,000), and Santo Tomé (58,000).

Córdoba (Spanish pronunciation: [ˈkoɾðoβa]) is a city in central Argentina, in the foothills of the Sierras Chicas on the Suquía River, about 700 km (435 mi) northwest of Buenos Aires. It is the capital of Córdoba Province and the second-most populous city in Argentina after Buenos Aires, with about 1.6 million urban inhabitants according to the 2020 census.

Córdoba was founded as a settlement on 6 July 1573 by Spanish conquistador Jerónimo Luis de Cabrera, who named it after the Spanish city of Córdoba. It was one of the early Spanish colonial capitals of the region of present-day Argentina (the oldest Argentine city is Santiago del Estero, founded in 1553). The National University of Córdoba, the oldest university of the country, was founded in 1613 by the Jesuit Order, and Córdoba has earned the nickname La Docta ("the learned").