Globe Countries Cities Dispatches World's Best Events Get the App
Golden Patagonian steppe under snow-capped peaks in Valle Chacabuco, with a guanaco herd
Chile  ·  47.10°S 72.33°W

The Sheep Ranch That Became the Serengeti of Patagonia

Written by Meridian Dispatch  ·  10 July 2026

A man made a fortune in outdoor clothing, bought one of the largest sheep ranches in Patagonia, and pulled out every fence. This is what came back.


The guanacos are on the hills before the sun reaches them, loose herds standing into the wind, and what is wrong with the picture takes a moment to place. There are no fences. In a valley this size, in this part of Patagonia, that is close to unnatural. For most of a century Valle Chacabuco was one of the largest sheep ranches in the region, its grassland cut into paddocks by hundreds of kilometres of wire. Somebody took all of it down on purpose.

That somebody was Douglas Tompkins, who made his money in clothing, first as the founder of a mountain-gear label and then in fashion, and spent the last decades of his life buying Patagonian land in order to leave it alone. He bought this estancia in 2004. Then he did the thing that made Chileans suspicious of him for years, a foreigner accused at various times of running a spy base and of trying to seize the country's fresh water: he sold off the twenty-five thousand sheep, pulled up six hundred kilometres of fence, and waited to see what the land would do without them.

A herd of guanacos on the open grassland of Valle Chacabuco
The guanacos, back on the open grass

What it did was fill back up. The guanacos came first, in the numbers the ranch had spent a century keeping down, and people who know the valley took to calling it the Serengeti of Patagonia. Where the guanacos went the pumas came after them, and this is now one of the better places to watch a wild puma outside Torres del Paine, though nobody here will promise you one. The cat keeps its own hours. You watch the guanacos instead, and when a whole hillside of them turns to face the same patch of empty ground and begins to call, you know they have seen something you have not.

The trail to the high lagoons, Lagunas Altas, is the valley's marquee walk, a long climb off the valley floor to a shelf of tarns held under the peaks. A condor comes over the ridge and hangs there without seeming to move. The lagoons hold the light without a ripple, and for most of a morning the only sounds are the wind in the grass and boots on the path. The trail runs empty. In a national park, at the height of summer, it can be walked most of the way without meeting another person.

A still high lagoon under snow-streaked peaks on the Lagunas Altas trail
The high lagoons, under the peaks
An Andean condor turning over the ridgeline
A condor, hung over the ridge

The weather does not hold still the way the water does. A clear hour turns to hail and then clears again, and the wind is a constant the way it is at sea. People who camp in the valley talk about waking to snow in December. It is beautiful in the plain, unshowy way that cold open country is beautiful, and it asks a certain patience of you before it gives anything back.

He spent a fortune to buy this valley, and another to give it away, on the plain faith that the wild would know what to do with it once the fences were down.

Tompkins did not live to finish the park. In December 2015 his kayak went over on Lago General Carrera, the great lake to the north, in high wind and near-freezing water, and he died of hypothermia at seventy-two. His wife, Kristine, who had herself run an outdoor company, completed the work he had begun. In 2018 she and the Chilean president signed the land over: a donation of roughly a million acres from the Tompkins foundation, matched with millions more of federal ground, that created a chain of new national parks down the length of the country. This valley is the heart of it. Tompkins is buried a short walk from the visitor centre, in the ground he spent a fortune giving away.

The gravel Carretera Austral running through the valley under the peaks
The Carretera Austral, the long gravel road in

The grave makes an honest place to end a visit. It is a plain marker on a rise above the valley, easy to walk past. From it the eye runs over the grassland the sheep once cropped bare, greened over now, a guanaco herd strung along the far ridge where a fence used to run. The rangers here say the emptiness was the hardest thing they ever built, and in the cold early light it is easy to believe them.

← All dispatches
Places on record

Every place in this dispatch

  1. Landmark
    Map of Valle Chacabuco
    Landmark · Cochrane

    Valle Chacabuco

    A broad east-west valley of grassland and lenga forest running from the Carretera Austral to the Argentine border at Paso Roballos, once the largest sheep station in Aysén. The road through it is gravel, driveable in a normal car in summer, with guanaco herds on the flats and the park's stone buildings at the western end.

  2. Lake
    Lago General Carrera
    Lake · Puerto Río Tranquilo

    Lago General Carrera

    The second largest lake in South America, shared with Argentina, where it carries the name Lago Buenos Aires, and coloured an opaque blue by rock flour off the glaciers that feed it. Its own weather builds fast and the water is deep and cold, so launches leave early and turn back without argument.

  3. Park
    Patagonia National Park
    Park · Cochrane

    Patagonia National Park

    A sheep estancia of 80,000 hectares bought by Douglas and Kristine Tompkins in 2004, emptied of livestock, fenced free and handed to the state in 2018 as the core of a park that now joins Jeinimeni and Tamango. Guanaco, flamingos and the occasional puma are seen from the road; the visitor centre and trailheads are in the Chacabuco valley, open all year, quietest outside January.

  4. Viewpoint
    Map of Confluencia de los ríos Baker y Nef
    Viewpoint · Cochrane

    Confluencia de los ríos Baker y Nef

    The point where the glacial-grey Nef joins the turquoise Baker in a set of rapids, twenty minutes' walk from a lay-by on the Carretera Austral north of the park turn-off. A short, well-marked path ends on rock above the meeting of the two colours; the site is unfenced and the spray is constant in spring flow.

  5. Lake
    Map of Lago Cochrane
    Lake · Cochrane

    Lago Cochrane

    A deep glacial lake shared with Argentina, where it is Lago Pueyrredón, reached from the town by the road into the old Tamango reserve. The water is clear enough to see the bottom several metres down, and the lakeside trail through the huemul deer habitat is the easiest chance in Chile of seeing one, with sightings most likely early in the morning.

  6. Trail
    Map of Lagunas Altas Trail
    Trail · Cochrane

    Lagunas Altas Trail

    The park's signature day walk, a 23-kilometre loop from the Westwinds campsite that climbs through lenga forest to a chain of small lakes on the Tamango ridge and looks down the whole valley to the Baker. Seven hours for a fit walker, exposed to wind above the treeline, with no water past the last lake; carry the day's supply from the start.

Explore

More of Chile

Country

Chile

Every Chile dispatch, city and place, on one map.

Town guide

Cochrane

Patagonia National Park, the Lagunas Altas trail and the Baker river.

Dispatch

Ancud, Chiloé

Penguin boats at Puñihuil and a sunset fort above the harbour.

Meridian Dispatch for iPhone

Plan the trip.
Keep the journal.

Every other travel app asks you to start logging. Meridian Dispatch opens with years of your travel already written, from the photographs you already took.