Glaciar Perito Moreno and the moving wall of Patagonian ice
Published on 09/08/2026 at 09:33 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Glaciar Perito Moreno in southern Patagonia is one of the rare places where a major outlet of the Southern Patagonian Ice Field drops directly into an accessible lake, forming a vast wall of ice within reach of El Calafate. Set inside Los Glaciares National Park in Argentina’s Santa Cruz province, it links high Andean ice to the shores of Lake Argentino in a single, uninterrupted body of glacier.
A glacier face meeting the lake
Perito Moreno Glacier occupies the southwestern sector of Santa Cruz province, descending from the Southern Patagonian Ice Field and terminating in the waters of Lake Argentino.Perito Moreno Glacier in Santa Cruz Its terminus forms an ice front several kilometres long where the glacier meets the lake, creating a continuous cliff of ice above the water. The glacier lies inside Los Glaciares National Park, a protected area inscribed on the UNESCO World Heritage List in 1981 for its concentration of large valley glaciers and Andean landscapes.Los Glaciares World Heritage inscription
The ice front of Glaciar Perito Moreno stands tens of metres above Lake Argentino, with seismic measurements and World Heritage data indicating ice thickness reaching hundreds of metres at its deepest point.ice thickness measurements The glacier’s surface area is on the order of a few hundred square kilometres, comparable to or larger than the urban footprint of Buenos Aires.Perito Moreno glacier dimensions From the national park walkways, visitors look across a narrow arm of the lake towards this high, crevassed front, watching blocks of ice detach and fall into the water.
From the Patagonian Ice Field to Lake Argentino
Perito Moreno is one of dozens of large glaciers fed by the Southern Patagonian Ice Field, a vast body of ice straddling the Andes between Argentina and Chile.Southern Patagonian Ice Field outlet The glacier flows roughly eastwards from high accumulation zones on the Andean crest down towards the lower elevations around Lake Argentino. Measurements and technical descriptions place its length at several tens of kilometres, making it one of Argentina’s larger valley glaciers.Perito Moreno glacier length and area
The glacier’s terminus advances into the lake along a tongue of ice that can at times block water circulation between different arms of Lake Argentino, creating a natural dam and, at intervals, spectacular ruptures when the impounded water breaks through the ice barrier.natural ice dam and rupture World Heritage assessments describe the glacier’s front as roughly 5 km long and 50–70 m high, with the tongue extending from a thickness of about 700 m at depth to a terminus only a few hundred metres above sea level.Perito Moreno front height
Name, history and setting near El Calafate
The glacier takes its name from Francisco Moreno, an Argentine explorer and scientist of the nineteenth century who carried out extensive studies of Patagonia and contributed to the definition of the frontier between Argentina and Chile.Francisco Moreno and glacier naming “Perito” refers to his role as an expert in the border commissions, and the glacier’s official Spanish name, Glaciar Perito Moreno, preserves that title. The ice mass is also known in some historical sources as Bismarck Glacier or Francisco Gormaz Glacier, but the Perito Moreno name is the established usage.
Glaciar Perito Moreno lies west of the town of El Calafate, which serves as the main access point to Los Glaciares National Park on the southern shore of Lake Argentino.location near El Calafate Park information and regional guides place the distance between El Calafate and the glacier at around 75–80 km along provincial roads.route from El Calafate The drive follows Ruta Provincial 11 towards Punta Bandera, then a side road towards the Magallanes Peninsula, where a network of walkways offers multiple vantage points over the ice and lake.
Visiting Glaciar Perito Moreno: what travellers from Western Europe should know
- Glaciar Perito Moreno lies in Los Glaciares National Park in the southwest of Argentina’s Santa Cruz province, around 75–80 km west of El Calafate, reached by road via Ruta Provincial 11 and the spur to the Magallanes Peninsula.
- The main viewpoints use elevated metal walkways and staircases above Lake Argentino, with a series of steps and level changes that require steady footing but keep visitors on firm platforms facing the glacier front.
- The glacier stands at a few hundred metres above sea level in a Patagonian Andean setting, so visits combine lake-level viewpoints with excursions on the surrounding terrain, where weather and cold conditions can be changeable at any time of year.
- The official language is Spanish and the currency is the Argentine peso.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
Searching for Glaciar Perito Moreno on social platforms
These links open searches for Glaciar Perito Moreno on each platform.Frequently asked questions about Glaciar Perito Moreno
Where is Glaciar Perito Moreno located?
Glaciar Perito Moreno is in Los Glaciares National Park in southwest Santa Cruz province, Argentina, west of the town of El Calafate on the shore of Lake Argentino.
What can visitors expect when they reach the glacier?
Visitors find a long glacier front rising above Lake Argentino, viewed from structured walkways and platforms on the Magallanes Peninsula that offer multiple angles over the ice and surrounding Patagonian landscape.
What makes Glaciar Perito Moreno distinctive among Patagonian glaciers?
Its combination of substantial length, large surface area, direct contact with a major lake, and ease of access from El Calafate makes Glaciar Perito Moreno a prominent outlet of the Southern Patagonian Ice Field.
