Neuquén Province in the context of "Rio Negro Province"

Patagonia (Spanish pronunciation: [pataˈɣonja]) is a geographical region in southern South America that spans parts of Argentina and Chile. It includes the southern portion of the Andes mountain range, featuring lakes, fjords, temperate rainforests, and glaciers in the west, and deserts, tablelands, and steppes toward the east. The region is bounded by the Pacific Ocean to the west, the Atlantic Ocean to the east, and several waterways that connect them, including the Strait of Magellan, the Beagle Channel, and the Drake Passage to the south.

The northern limit of the region is not precisely defined; the Colorado and Barrancas rivers, which run from the Andes to the Atlantic, are commonly considered the northern limit of Argentine Patagonia; on this basis the extent of Patagonia could be defined as the provinces of Neuquén, Río Negro, Chubut and Santa Cruz, together with Patagones Partido in the far south of Buenos Aires Province. The archipelago of Tierra del Fuego is sometimes considered part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in Araucanía Region.

The Colorado River (Spanish: Río Colorado, Spanish pronunciation: [ˈri.o koloˈɾaðo]) is a river in the center of Argentina.

The Colorado River marks most of the political boundary between the Argentine provinces of Neuquén and Mendoza, and between Rio Negro and La Pampa. Its man-made dam, "Embalse Casa de Piedra," serves both to generate hydroelectricity for the arid region the river traverses, and to regulate the river's water level.

The Barrancas River is a river in western Argentina. Traveling eastward from the Andes range, it separates the Argentine provinces of Mendoza and Neuquén. Joining the Río Grande, it merges into the Colorado, and flows into the Atlantic Ocean.

Río Negro (Spanish pronunciation: [ˈri.o ˈneɣɾo], Black River) is a province of Argentina, located in northern Patagonia. Neighboring provinces are from the south clockwise Chubut, Neuquén, Mendoza, La Pampa and Buenos Aires. To the east lies the Atlantic Ocean.

Its capital is Viedma near the Atlantic outlet of the province's namesake river in the eastern extreme. The largest city is Bariloche in the far west in the Andean foothills. Other important cities include General Roca and Cipolletti.

Mendoza (Spanish pronunciation: [menˈdosa]), officially the Province of Mendoza, is a province of Argentina, in the western central part of the country in the Cuyo region. It borders San Juan to the north, La Pampa and Neuquén to the south, San Luis to the east, and the republic of Chile to the west; the international limit is marked by the Andes mountain range. Its capital city is the homonymous city of Mendoza.

Covering an area of 148,827 km, it is the seventh biggest province of Argentina with 5.35% of the country's total area. The population for 2022 is 2,014,533 inhabitants, which makes it the fifth most populated region of the country, or 4.38% of the total national population.

The Limay River is an important river in the northwestern Argentine Patagonia (the region of Comahue). It originates at the eastern end of the Nahuel Huapi Lake and flows in a meandering path for about 380 kilometres (240 mi), collecting the waters of several tributaries, such as the Traful River, the Pichileufú and the Collón Curá. It then meets the Neuquén River and together they become the Río Negro. At this confluence lies the city of Neuquén.

The river serves as natural border between the provinces of Río Negro and Neuquén. Its deep waters are clear, and carry a large flow, 700 cubic metres per second (25,000 cu ft/s) on average. Its drainage basin has an area of 61,723 square kilometres (23,831 mi) and includes almost all the rivers and streams of the Atlantic basin in the region, as well as an extensive network of lakes.

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.

Río Grande (Spanish for "great river") is a river located in Malargüe Department of southwestern Mendoza Province, Argentina. It arises in the confluence of the rivers Cobre and Tordillo on the Andes range near Chile and ends at the Colorado River at the Neuquén Province border. Its total length is 275 kilometres (171 mi). It's the most plentiful river of Mendoza with a flow of 107 m/s (3,800 cu ft/s).

The river is from 125 km (78 mi) of Malargüe city and its course is development through volcanic rocks cracks. Around exists untouched earth, but the local government plans to take advantage of its resources.