In the Patagonia, the Perito Moreno glacier front is 60 m high and 5 km long, towering over the Lago Argentino, into which from time to time mighty blocks of ice thunder down. This 30-km long glacier, with an area of 250 km2, is the only one in Argentina – and perhaps in the whole world – that has remained hardly untouched by the climate change.

At Lago Argentino in the Calafate region. There are indigenous pictograms on the rocks. In the background the Andes. - Santa Cruz Province - 1973

Rainbow over Lake Brazo Rico near Calafate - Santa Cruz Province - 1973

The northern arm of Lake Brazo Rico near Calafate - Santa Cruz Province - 1973

At the northern arm of the lake Brazo Rico near Calafate with a dead tree and two water birds - Santa Cruz Province - 1973

Landscape at the eastern end of Lago Argentino. In the background the Andes. - Calafate Region - Santa Cruz Province - 1973

The western part of Patagonia is formed by the Andes Cordillera, which represents an insurmountable barrier in some sections. The winds blow from the Pacific in an almost unchanging direction. The clouds they bring accumulate above the high mountain peaks and cause abundant precipitation. This explains why, despite their low altitude, glaciers of sometimes enormous dimensions extend along the eastern flank of the Andes. In the Los Glaciares National Park (Santa Cruz Province) lies the Argentino, the Silver Lake, one of the most beautiful lakes in this southern region. The town of Calafate on its southern shore is visited by more and more tourists. Several glaciers can be seen nearby. One is called Uppsala and is 40 kilometres long. An equally famous one is called Perito Moreno. Navigation on the Silver Lake is dangerous, if only because of the wind and the storms that are frequent in the Cordillera. Nature, preserved in its authenticity, attracts many scientists who can devote themselves to their studies here. - 1973

The Argentine Antarctic covers an area of 1,230,000 square kilometres, a world of ice and rocks that is still largely unexplored. Only a few have had the courage and endurance to venture into this inhospitable region, where dangers threaten and temperatures are extremely low. Already in certain sections of the Andes Cordillera, especially in the southernmost part, one feels this impression of solitude. You only have to make the trip to the Perito Moreno glacier to convince yourself of this. This magnificent glacier owes its name to an Argentinean naturalist. It is 17 kilometres long and at least three kilometres wide, with a front height of 70 metres. Here at the glacier break-off, blocks of ice are constantly breaking away and plummeting into the depths with a deafening roar. They then float as icebergs through Lake Argentino. The Perito Moreno glacier advances four metres a year - a consequence of the heavy precipitation on the peaks of the southernmost Andes. - 1973

The western part of Patagonia is formed by the Andean Cordillera, which in certain sections presents an insurmountable barrier. The winds blow in from the Pacific in an almost constant direction. The clouds they carry gather over the high mountain peaks and bring heavy rainfall. This explains why, despite the relatively low altitude, glaciers – some of which are of immense proportions – stretch across the eastern flank of the Andes. In Los Glaciares National Park (Santa Cruz Province) lies Lago Argentino, the ‘Silver Lake’, one of the most beautiful lakes in this southern region. The town of Calafate on its southern shore is attracting ever more tourists. Several glaciers can be seen in the immediate vicinity. One is called Uppsala and is 40 kilometres long. Pictured here is the equally famous Perito Moreno. – Argentina – 1973

As the eastern tongue of the great Patagonian ice field, the 17-kilometre-long Moreno Glacier stretches down to the southern arm of Lago Argentino, where it ends in a 70-metre-high ice wall. Its scientific discoverer, R. Hauthal, had named it the ‘Bismarck Glacier’ in 1899; it was given its current name in honour of the Argentine naturalist F. P. Moreno. Even in Hauthal’s day, clear signs of irregular advances were evident, whilst the other Southern Andes glaciers were already retreating. Since then, the Canal de los Témpanos has been completely blocked on several occasions, leading to a build-up of water in the southern part of the lake and catastrophic flooding, prompting attempts – in vain – to blast the ice wall with bombs. It was only after a transverse crevasse had formed in the 2 to 2.5-kilometre-wide glacier tongue that the floodwaters drained away. Today, the ‘Canal de los Témpanos’ is open again. - Book: Picture 205 - Argentina - 1973

The western part of Patagonia is formed by the Andes Cordillera, which represents an insurmountable barrier in some sections. The winds blow from the Pacific in an almost unchanging direction. The clouds they bring accumulate above the high mountain peaks and cause abundant precipitation. This explains why, despite their low altitude, glaciers of sometimes enormous dimensions extend along the eastern flank of the Andes. In the Los Glaciares National Park (Santa Cruz Province) lies the Argentino, the Silver Lake, one of the most beautiful lakes in this southern region. The town of Calafate on its southern shore is visited by more and more tourists. Several glaciers can be seen nearby. One is called Uppsala and is 40 kilometres long. An equally famous one is called Perito Moreno. Navigation on the Silver Lake is dangerous, if only because of the wind and the storms that are frequent in the Cordillera. Nature, preserved in its authenticity, attracts many scientists who can devote themselves to their studies here. - 1973

As the eastern tongue of the great Patagonian ice field, the 17-kilometre-long Moreno Glacier stretches down to the southern arm of Lago Argentino, where it ends in a 70-metre-high ice wall. Its scientific discoverer, R. Hauthal, had named it the ‘Bismarck Glacier’ in 1899; it was given its current name in honour of the Argentine naturalist F. P. Moreno. Even in Hauthal’s day, clear signs of irregular advances were evident, whilst the other Southern Andes glaciers were already retreating. Since then, the Canal de los Témpanos has been completely blocked on several occasions, leading to a build-up of water in the southern part of the lake and catastrophic flooding, prompting attempts – in vain – to blast the ice wall with bombs. It was only after a transverse crevasse had formed in the 2 to 2.5-kilometre-wide glacier tongue that the floodwaters drained away. Today, the ‘Canal de los Témpanos’ is open again. - Book: Picture 204 - Argentina - 1973

The western part of Patagonia is formed by the Andes Cordillera, which represents an insurmountable barrier in some sections. The winds blow from the Pacific in an almost unchanging direction. The clouds they bring accumulate above the high mountain peaks and cause abundant precipitation. This explains why, despite their low altitude, glaciers of sometimes enormous dimensions extend along the eastern flank of the Andes. In the Los Glaciares National Park (Santa Cruz Province) lies the Argentino, the Silver Lake, one of the most beautiful lakes in this southern region. The town of Calafate on its southern shore is visited by more and more tourists. Several glaciers can be seen nearby. One is called Uppsala and is 40 kilometres long. An equally famous one is called Perito Moreno. Navigation on the Silver Lake is dangerous, if only because of the wind and the storms that are frequent in the Cordillera. Nature, preserved in its authenticity, attracts many scientists who can devote themselves to their studies here. - 1973

As the eastern tongue of the great Patagonian ice field, the 17-kilometre-long Moreno Glacier stretches down to the southern arm of Lago Argentino, where it ends in a 70-metre-high ice wall. Its scientific discoverer, R. Hauthal, had named it the ‘Bismarck Glacier’ in 1899; it was given its current name in honour of the Argentine naturalist F. P. Moreno. Even in Hauthal’s day, clear signs of irregular advances were evident, whilst the other Southern Andes glaciers were already retreating. Since then, the Canal de los Témpanos has been completely blocked on several occasions, leading to a build-up of water in the southern part of the lake and catastrophic flooding, prompting attempts – in vain – to blast the ice wall with bombs. It was only after a transverse crevasse had formed in the 2 to 2.5-kilometre-wide glacier tongue that the floodwaters drained away. Today, the ‘Canal de los Témpanos’ is open again. - Book: Picture 203 - Argentina - 1973

The Perito Moreno Glacier (Spanish: Glaciar Perito Moreno) is one of the best-known and most spectacular glaciers on Earth. It is situated in Los Glaciares National Park in the Argentine province of Santa Cruz, in south-western Patagonia. The glacier stretches for around 30 kilometres and is 5 kilometres wide. The impressive ice front rises, on average, 55 to 75 metres above the surface of Lago Argentino. Underwater, the ice extends a further 100 metres or so into the depths. Unlike most glaciers worldwide, which are shrinking due to global warming, the Perito Moreno Glacier is in a relatively stable equilibrium. It advances by up to 2 metres every day. As a result of this continuous movement, chunks of ice as tall as houses regularly break off from the front. This phenomenon is accompanied by a thunderous crash and a deep rumble that can be heard for kilometres. As it advances, the glacier periodically blocks a side arm of Lago Argentino (Brazo Rico). The dammed-up water builds up enormous pressure until the barrier finally collapses in a spectacular process lasting several days. – Argentina – 1973

As the eastern tongue of the great Patagonian ice field, the 17-kilometre-long Moreno Glacier stretches down to the southern arm of Lago Argentino, where it ends in a 70-metre-high ice wall. Its scientific discoverer, R. Hauthal, had named it the ‘Bismarck Glacier’ in 1899; it was given its current name in honour of the Argentine naturalist F. P. Moreno. Even in Hauthal’s day, clear signs of irregular advances were evident, whilst the other Southern Andes glaciers were already retreating. Since then, the Canal de los Témpanos has been completely blocked on several occasions, leading to a build-up of water in the southern part of the lake and catastrophic flooding, prompting attempts – in vain – to blast the ice wall with bombs. It was only after a transverse crevasse had formed in the 2 to 2.5-kilometre-wide glacier tongue that the floodwaters drained away. Today, the ‘Canal de los Témpanos’ is open again. - Book: Picture 202 - Argentina - 1973

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