Question: In which region is the lake, found in Patagonia and shared by Argentina and Chile, located?

full_context: Document 1: St. Mary's Airport (Alaska): St. Mary's Airport (IATA: KSM, ICAO: PASM, FAA LID: KSM) is a public airport located four miles (6 km) west of the central business district of St. Mary's, in the Kusilvak Census Area of the U.S. state of Alaska. This airport is publicly owned by the State of Alaska Department of Transportation and Public Facilities (DOT&PF) - Northern Region.
Document 2: West Mesa Airport: West Mesa Airport was an airport on Albuquerque, New Mexico's West Side. Built in 1929, it was the city's second airport after the original Albuquerque Airport (completed in 1928). West Mesa was built by Western Air Express and was originally known as "Western Air Express Airport." TWA and Continental Airlines operated out of this airport until the Albuquerque Municipal Airport (now Albuquerque International Sunport) was built in 1939. Cutter-Carr Flying Service (known later as Cutter Flying Service or Cutter Aviation) operated flight instruction and fuel service until shortly before West Mesa Airport closed in 1967.
Document 3: Meseta Cosmelli Airport: Meseta Cosmelli Airport (Spanish: "Aeropuerto Meseta Cosmelli" ), (ICAO: SCMC) is an airstrip 18 km northeast of Puerto Guadal , a small town on the southwestern shore of General Carrera Lake in the Aysén Region of Chile.
Document 4: Argentina–Chile relations: Argentina–Chile relations refers to interstate relations between the Republic of Chile and the Argentine Republic. Argentina and Chile share the world's third-longest international border, which is 5300 km long and runs from north to the south along the Andes mountains. Although gaining their independence during the South American wars of liberation, during much of the 19th and the 20th century relations between the countries were chilled as a result of disputes over the border in Patagonia. In recent years relations have improved dramatically. Despite increased trade between the two countries, Argentina and Chile have followed quite different economic policies. Chile has signed free trade agreements with countries such as China, the USA, Canada, South Korea and the EU and is an active member of the APEC, while Argentina belongs to the Mercosur regional free trade area. Both countries are members of the Union of South American Nations.
Document 5: El Tehuelche Airport: El Tehuelche Airport (Spanish: "Aeropuerto El Tehuelche" ) (IATA: PMY, ICAO: SAVY) is an airport located about 10 km northwest of downtown Puerto Madryn, in the province of Chubut, Argentina.
Document 6: Patagonia: Patagonia (] ) is a sparsely populated region located at the southern end of South America, shared by Argentina and Chile. The region comprises the southern section of the Andes mountains as well as the deserts, pampas and grasslands east of this southern portion of the Andes. Patagonia has two coasts: western facing the Pacific Ocean and eastern facing the Atlantic Ocean.
Document 7: La Gomera Airport: La Gomera Airport (IATA: GMZ, ICAO: GCGM) is an airport located near the town of Playa Santiago on the island of La Gomera in the Canary Islands, 34 km southwest by road from the island's capital city, San Sebastián de la Gomera.
Document 8: General Carrera Lake: General Carrera Lake (Chilean side, officially renamed in 1959) or Lake Buenos Aires (Argentine side) is a lake located in Patagonia and shared by Argentina and Chile. Both names are internationally accepted.
Document 9: Ciudad Real Central Airport: Ciudad Real Central Airport (IATA: CQM, ICAO: LERL) , previously known as "Don Quijote Airport" and "South Madrid Airport", was an international airport south of Ciudad Real in Spain. It is located over 200 km from the centre of Madrid and next to the A-41 motorway, it was planned to be connected to the Madrid–Seville high-speed rail line, making it the first Spanish airport to be linked to the AVE network. Via AVE, the airport would have been 50 minutes away from either central Madrid or Córdoba, and less than two hours from Seville and Málaga. It was the first international private airport in Spain, costing €1.1bn to build.
Document 10: Argentina: Argentina ( ; ] ), officially the Argentine Republic (Spanish: "República Argentina" ), is a federal republic in the southern portion of South America. Sharing the bulk of the Southern Cone with its neighbor Chile to the west, the country is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. With a mainland area of 2780400 km2 , Argentina is the eighth-largest country in the world, the second largest in Latin America, and the largest Spanish-speaking one. The country is subdivided into twenty-three provinces (Spanish: "provincias" , singular "provincia") and one autonomous city ("ciudad autónoma"), Buenos Aires, which is the federal capital of the nation (Spanish: "Capital Federal" ) as decided by Congress.
Document 11: Vintter Lake: Vintter Lake or Palena Lake is a lake located in Patagonia which is shared by Argentina, where it is known as Lago General Vintter, and by Chile, where it's called Lago Palena. Both names are internationally accepted. The Argentine name is after General Lorenzo Vintter, the second governor of the Argentine Territory of Patagonia (1882–1884), and the first governor of the Territory of the Río Negro (1884–1888).
Document 12: Bariloche: San Carlos de Bariloche, usually known as Bariloche (] ), is a city in the province of Río Negro, Argentina, situated in the foothills of the Andes on the southern shores of Nahuel Huapi Lake. It is located within the Nahuel Huapi National Park. After development of extensive public works and Alpine-styled architecture, the city emerged in the 1930s and 1940s as a major tourism centre with skiing, trekking and mountaineering facilities. In addition, it has numerous restaurants, cafés, and chocolate shops. The city has a permanent population of 108,205 according to the 2010 census.
Document 13: Oristano-Fenosu Airport: Oristano-Fenosu Airport is a small regional airport located in the central western Sardinia, Italy. (IATA: FNU, ICAO: LIER) next to the town of Oristano. The Airport is entitled at the brave and famous oristanianman Trasvolatori Ernesto Campanelli, is located at about 3 km east of Oristano, in the farming village called Fenosu, on the road N. 57 - Oristano- Palmas Arborea. It is lapped by Highway 131, the island's most important road artery, and occupies a central position.
Document 14: Patagonia Sin Represas: The phrase Patagonia Sin Represas means “Patagonia without dams.” It's the slogan of people and groups who oppose the proposed hydroelectric dam project of HidroAysén in the Aisén Region of Chile. Posters and bumper stickers with the slogan are a common sights as a majority of Chileans and residents of the region in particular, oppose the project. The Aisén region is the XI region in Chile, home to Chile’s portion of Patagonia, the least populated region. The terrain is characterized by coastal mountains, rolling hills, fjord land, and large glaciers. The annual rainfall in certain parts of the region can exceed 300 inches. The region is home to Patagonian Southern Ice Sheet, the third largest ice sheet behind Greenland, and Antarctica.
Document 15: RN-5 (Autopista Comalapa): The RN-5 (Autopista Comalapa, Boulevard Los Proceres) serves as one of the main highways in the Metropolitan Area of San Salvador. The highway connects the metropolitan area with the El Salvador International Airport, located in San Luis Talpa, La Paz, a municipality that borders with the San Salvador Department. The highway was built to replace the old "Carretera al Aeropuerto", a small road that runs on the side of a mountain range, parallel to the "Autopista Comalapa". This road has been turned into a scenic road. It overlooks the new RN-5 and the southern hills of the San Salvador Department. The total length of the highway is 40.7 km . It is currently the only highway that connects to the airport coming from the metropolitan area. Other highways connect with the RN-5 to provide connection to the other departments in the country. The construction of the first Carretera a Comalapa was made in 1980. The construction of the highway began in 2001 and it was completed and inaugurated on November 22, 2002. The part of the highway known as "Boulevard de Los Proceres" runs through the southern side of the city of San Salvador. The highway is also a vital area in the city. It connects with various restaurants, business centers, and other dealerships.
ground_truth: Aysén Region