Patagonia is a region rather than a country, and its borders depend on who is drawing them. What every map agrees on is the outline: the southern tip of South America, split between Argentina and Chile by the Andes, ending at the Strait of Magellan and the islands of Tierra del Fuego. Inside that outline are two contrasting landscapes, and the line between them is the most useful thing to understand.
Where Patagonia starts
There is no official northern boundary. In Argentina it is usually taken to begin around the Colorado River, south of the pampas, and to take in the provinces of Neuquén, Río Negro, Chubut and Santa Cruz, with Tierra del Fuego at the far end. In Chile it generally covers the far south, the Aysén region and the Magallanes and Chilean Antarctica region, with some definitions reaching north into the Lakes District. Different sources draw the line differently, so treat any precise northern border as a convention.
The Andes divide it in two
The mountains run north to south and split Patagonia into contrasting halves.
- The Chilean side, west of the Andes, catches the rain coming off the Pacific. It is a coast of fjords, channels, temperate rainforest and thousands of islands, with almost no roads.
- The Argentine side, east of the Andes, sits in the rain shadow. Most of it is open steppe, dry, flat and windy, broken by plateaus and river valleys that run down to the Atlantic.
The contrast can be extreme over a short distance. A glacier valley in the mountains may sit a short drive from grassland where trees barely grow.
The ice between them
Along the crest of the southern Andes lies the Southern Patagonian Ice Field, shared by both countries. Argentina’s national parks service says Los Glaciares National Park protects part of what it calls the third largest continental ice field on the planet. The park was created in 1937, covers more than 726,000 hectares and was declared a World Heritage Site by UNESCO in 1981. Its glaciers flow down into large lakes on the Argentine side, and the town of El Calafate is the usual base for visiting them. Further north in the same park, the granite spires around Mount Fitz Roy draw climbers and hikers to El Chaltén.
Torres del Paine, on the Chilean side
The best known park in Chilean Patagonia is Torres del Paine. According to CONAF, the Chilean forest and parks agency, it covers 227,298 hectares in the Magallanes and Chilean Antarctica region, was created on 13 May 1959, and was named a UNESCO biosphere reserve in 1978. The highest summit of the Paine massif reaches 3,050 metres. Puerto Natales is the main access town.
CONAF is strict on fire: lighting any heat source, including campfires, is prohibited under Chilean law and can lead to heavy fines or prison. Cooking is only allowed with approved stoves in designated areas. The park has suffered serious fires in the past, which is why the rule is enforced.
Wildlife along the Atlantic coast
The Argentine coast of Patagonia is where most of the region’s marine wildlife is seen. The Valdés Peninsula in Chubut is known for southern right whales, sea lions and elephant seals, and colonies of Magellanic penguins nest along the coast further south. Inland, guanacos and rheas are a common sight on the steppe, often from the car window. Seasons matter on the coast: whales and penguins are present for part of the year only, so check local park information before planning around them.
The far south
At the bottom of the map, the Strait of Magellan separates the mainland from Tierra del Fuego, a large island shared between Chile and Argentina. Ushuaia, on the Argentine side, sits on the Beagle Channel and is the main departure point for ships to Antarctica. South of the islands lies Cape Horn, where the Atlantic and Pacific meet.
Distances to plan around
Patagonia is larger than most first-time visitors expect, and its roads are long and sometimes unpaved. Crossing between the main Chilean and Argentine parks involves border posts, and the wind can close roads, ferries and flights. Building slack days into an itinerary is more useful than adding another destination.
Reading Patagonia in context
Patagonia is the southern end of the continent described in the map of South America, which shows how the Andes run all the way from the Caribbean coast to Cape Horn. Across the Drake Passage, the map of Antarctica picks up where Tierra del Fuego ends. For another mountain region where ice and border lines meet, the map of the Alps makes an interesting comparison.
Visiting rules, fees and access to Torres del Paine are published by CONAF on the park’s official page.
