Mount Usborne ( es, Cerro Alberdi) is a mountain on

East Falkland East Falkland ( es, Isla Soledad) is the largest island of the Falklands in the South Atlantic, having an area of or 54% of the total area of the Falklands. The island consists of two main land masses, of which the more southerly is known as Laf ...

. At above sea level, it is the highest point in the

Falkland Islands The Falkland Islands (; es, Islas Malvinas, link=no ) is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and about from Cape Dubou ...

. It is only taller than Mount Adam, the highest peak on

West Falkland West Falkland ( es, Isla Gran Malvina) is the second largest of the Falkland Islands in the South Atlantic. It is a hilly island, separated from East Falkland by the Falkland Sound. Its area is , 37% of the total area of the islands. Its coast ...

. The mountain is referenced by

Charles Darwin Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English natural history#Before 1900, naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all speci ...

in Chapter 9 of ''

Zoology of the Voyage of H.M.S. Beagle ''The Zoology of the Voyage of H.M.S. Beagle Under the Command of Captain Fitzroy, R.N., during the Years 1832 to 1836'' is a 5-part book published unbound in nineteen numbers as they were ready, between February 1838 and October 1843. It was writ ...

''. It is named after Alexander Burns Usborne, master's assistant on , the ship that took Darwin on his famous voyage. As one of the highest mountains of the Falklands, it experienced some

glaciation A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate bet ...

. The remains of glacial

cirque A (; from the Latin word ') is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie (from Scottish Gaelic , meaning a pot or cauldron) and (; ). A cirque may also be a similarly shaped landf ...

s can be seen on the mountain. The handful of Falklands mountains over have: :''"pronounced corries with small

glacial lake A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the depression created by the glacier. Formation Near the end of the last glacial period, roughly 10, ...

s at their bases,

morainic A moraine is any accumulation of unconsolidated debris (regolith and rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a glacier or ice she ...

ridges deposited below the corries suggest that the glaciers and

ice dome Glacier morphology, or the form a glacier takes, is influenced by temperature, precipitation, topography, and other factors. The goal of glacial morphology is to gain a better understanding of glaciated landscapes and the way they are shaped. Ty ...

s were confined to areas of maximum elevation with other parts of the islands experiencing a periglacial climate''" Strange, Ian (1983) ''The Falkland Islands''

References

* Stonehouse, B (ed.) ''Encyclopedia of Antarctica and the Southern Oceans'' (2002, )

External links

A Stroll up Mount Usborne
* Usborne {{Mountain-stub