The southern part of the far south includes the city of Punta Arenas, which, with about 125,000 inhabitants, is the southernmost city of any appreciable size in the world. It receives much less precipitation; its annual total is only 438.5 millimeters, or a little more than what Valdivia receives in the month of June alone. This precipitation is distributed more or less evenly throughout the year, with the two main summer months receiving a monthly average of thirty-one millimeters and the winter months 38.9 millimeters, some of it in the form of snow. Temperatures are colder than in the rest of the country. The summer months average 11.1 °C, and the winter months average 2.5 °C. The virtually constant wind from the South Pacific Ocean makes the air feel much colder.
Monte San Valentin, also known as Monte San Clemente, is the highest mountain in Chilean Patagonia1 and the highest mountain south of 40°S outside Antarctica. It stands at the north end of the North Patagonian Icefield.
Monte San Valentin can be climbed from Lago Leones, to the south east, or from Laguna San Rafael, to the west. The ascent is long and is particularly subject to bad weather. The accident and fatality rate is high.
There is some confusion about the elevation. It was originally estimated at 3,876m by Nordenskjold in 1921 but later thought to be 4,058m. The latter is the most commonly quoted elevation and is quoted here. A French group that climbed the San Valentin in 1993 included two surveyors, who calculated an elevation of 4,080±20 m by using a GPS. In 2001 a Chilean group measured 4,070±40 m, also using GPS. SRTM data also supports an elevation in excess of 4,000 metres. But Chilean IGM mapping gives only 3,910 metres. ChIGM maps are usually accurate and reliable, but the summit is uniformly white, which may have created problems for the cartographers. Patagonia is a geographic region containing the southernmost portion of South America. Located in Argentina and Chile, it comprises the southernmost portion of the Andes mountains to the west and south, and plateaux and low plains to the east. The name Patagonia comes from the word patagón[1] used by Magellan to describe the native people whom his expedition thought to be giants. It is now believed the Patagons were actually Tehuelches with an average height of 1.80 m (~5'11") compared to the 1.55 m (~5'1") average for Spaniards of the time.[2]
To the east of the Andes, it lies south of the Neuquén River and Colorado rivers, and, to the west of the Andes, south of (39°S), excluding the Chiloé Archipelago.[3] East of the Andes.
The Argentine Patagonia includes the provinces of Neuquén, Río Negro, Chubut, Santa Cruz, and Tierra del Fuego, as well as the southern tips of the provinces of Buenos Aires, Mendoza and La Pampa.
The Chilean Patagonia embraces the southern part of the region of Los Lagos, and the regions of Aisén and Magallanes. It excludes those portions of Antarctica claimed by both countries. "sale".
Argentine Patagonia is for the most part a region of slike plains, rising in a succession of abrupt 13 terraces about 100 metres (330 ft) at a time, and covered with an enormous bed of shingle almost bare of vegetation.[3] In the hollows of the plains are ponds or lakes of brackish and fresh water. Towards the Andes the shingle gives place to porphyry, granite, and basalt lavas, animal life becomes more abundant and vegetation more luxuriant, acquiring the characteristics of the flora of the western coast, and consisting principally of southern beech and conifers. The high rainfall against the western Andes (Wet Andes) and the low sea surface temperatures offshore give rise to cold and humid air masses, contributing to the ice-fields and glaciers, the largest ice-fields in the Southern hemisphere outside of Antarctica.[3]
Among the depressions by which the plateau is intersected transversely, the principal are the Gualichu, south of the Río Negro, the Maquinchao and Valcheta (through which previously flowed the waters of Nahuel Huapi Lake, which now feed the river Limay); the Senguerr (spelled Senguer on most Argentine maps and within the corresponding region), the Deseado River. Besides these transverse depressions (some of them marking lines of ancient inter-oceanic communic
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