Administrative divisions of Chile in the context of "Antártica Chilena Province"

Antártica Chilena Province (Spanish: Provincia Antártica Chilena) is the southernmost of the four provinces in Chile's southernmost region, Magallanes and Antártica Chilena Region (XII). The capital is Puerto Williams. The province comprises the extreme southern part of Isla Grande de Tierra del Fuego (south of the Cordillera Darwin), the islands south and west of Isla Grande (Diego Ramírez Islands and its National Park, Diego Ramirez Islands & Drake Passage National Park), and Chile's claims in Antarctica. The province is administratively divided into two communes (comunas): Cabo de Hornos, located at the southern tip of South America, and Antártica, a wedge-shaped claim of Antarctica, which is not internationally recognized. Its total area of 1,265,853.7 km (488,749 sq mi) makes it almost twice as large as all other provinces of Chile combined.

The Antofagasta Region (Spanish: Región de Antofagasta, pronounced [antofaˈɣasta]) is one of Chile's sixteen first-order administrative divisions. Being the second-largest region of Chile in area, it comprises three provinces, Antofagasta, El Loa and Tocopilla. It is bordered to the north by Tarapacá, by Atacama to the south, and to the east by Bolivia and Argentina. The region's capital is the port city of Antofagasta; another one of its important cities is Calama. The region's main economic activity is copper mining in its giant inland porphyry copper systems.

Antofagasta's climate is extremely arid, albeit somewhat milder near the coast. Nearly all of the region is devoid of vegetation, except close to the Loa River and at oases such as San Pedro de Atacama. Much of the inland is covered by salt flats, tephra and lava flows, and the coast exhibits prominent cliffs.

Santiago Metropolitan Region (Spanish: Región Metropolitana de Santiago) is one of Chile's 16 first-order administrative divisions. It is the country's only landlocked administrative region and contains the nation's capital, Santiago. Most commercial and administrative centers are located in the region, including Chile's main international airport, Arturo Merino Benítez International Airport.

With an area of 15,403.2 km (5,947 sq mi) and population over seven million, it is Chile's most populated and most densely populated region. It is also the most developed subdivision in all of South America with a very high HDI of 0.908.

The Aysén del General Carlos Ibáñez del Campo Region (Spanish: Región de Aysén, pronounced [ajˈsen], or Región de Aysén del General Carlos Ibáñez del Campo), often shortened to Aysén Region or Aisén, is one of Chile's 16 first order administrative divisions. Although the third largest in area, the region is Chile's most sparsely populated region with a population of 102,317 as of 2017. The capital of the region is Coyhaique, the region's former namesake. The region's current namesake is the former President of Chile, General Carlos Ibáñez del Campo.

The landscape is marked by several glaciations that formed many lakes, channels and fjords. The region contains icefields including the Northern Patagonian Ice Field and the Southern Patagonian Ice Field, the world's third largest after those in Antarctica and Greenland. The northern half of the region feature a north-south string of volcanoes. While the western part of the region is densely vegetated and mountainous, the eastern reaches contain open grasslands and much flat and rolling terrain.