A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
A mountain pass is a route through a mountain range or over a ridge. At lower elevations it may be called a hill pass, the highest vehicle-accessible pass in the world appears to be Mana Pass, located in the Himalayas on the border between India and China. Mountain passes make use of a gap, saddle or col, a topographic saddle is analogous to the mathematical concept of a saddle surface, with a saddle point marking the highest point between two valleys and the lowest point along a ridge. On a topographic map, passes are characterized by lines with an hourglass shape. Passes are often found just above the source of a river, a pass may be very short, consisting of steep slopes to the top of the pass, or may be a valley many kilometres long, whose highest point might only be identifiable by surveying. Roads have long been built – and more recently railways – through passes, some high and rugged passes may have tunnels bored underneath to allow faster traffic flow throughout the year. The top of a pass is frequently the only ground in the area.
If a national border follows a mountain range, a pass over the mountains is typically on the border, and there may be a control or customs station. For instance Argentina and Chile share the worlds third-longest international border,5,300 kilometres long, the border runs north-south along the Andes mountains, with a total of 42 mountain passes. On a road over a pass, it is customary to have a roadside sign giving the name of the pass. As well as offering relatively easy travel between valleys, passes provide a route between two mountain tops with a minimum of descent. As a result, it is common for tracks to meet at a pass, passes traditionally were places for trade routes, cultural exchange, military expeditions etc. A typical example is the Brenner pass in the Alps, some mountain passes above the tree line have problems with snow drift in the winter. This might be alleviated by building the road a few meters above the ground, there are many words for pass in the English-speaking world. In the United States, pass is very common in the West, the gap is common in the southern Appalachians, notch in parts of New England.
Scotland has the Gaelic term bealach, while Wales has the similar bwlch, the roads at Mana Pass at 5,610 metres and Marsimik La at 5,582 metres, on and near the China-India border respectively, appear to be worlds two highest motorable passes. Media related to Mountain passes at Wikimedia Commons
Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities. The country is situated in western-Central Europe, and is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning an area of 41,285 km2. The establishment of the Old Swiss Confederacy dates to the medieval period, resulting from a series of military successes against Austria. Swiss independence from the Holy Roman Empire was formally recognized in the Peace of Westphalia in 1648. The country has a history of armed neutrality going back to the Reformation, it has not been in a state of war internationally since 1815, nevertheless, it pursues an active foreign policy and is frequently involved in peace-building processes around the world. In addition to being the birthplace of the Red Cross, Switzerland is home to international organisations.
On the European level, it is a member of the European Free Trade Association. However, it participates in the Schengen Area and the European Single Market through bilateral treaties, spanning the intersection of Germanic and Romance Europe, Switzerland comprises four main linguistic and cultural regions, French and Romansh. Due to its diversity, Switzerland is known by a variety of native names, Suisse, Svizzera. On coins and stamps, Latin is used instead of the four living languages, Switzerland is one of the most developed countries in the world, with the highest nominal wealth per adult and the eighth-highest per capita gross domestic product according to the IMF. Zürich and Geneva have each been ranked among the top cities in the world in terms of quality of life, with the former ranked second globally, according to Mercer. The English name Switzerland is a compound containing Switzer, a term for the Swiss. The English adjective Swiss is a loan from French Suisse, in use since the 16th century.
The name Switzer is from the Alemannic Schwiizer, in origin an inhabitant of Schwyz and its associated territory, the Swiss began to adopt the name for themselves after the Swabian War of 1499, used alongside the term for Confederates, used since the 14th century. The data code for Switzerland, CH, is derived from Latin Confoederatio Helvetica. The toponym Schwyz itself was first attested in 972, as Old High German Suittes, ultimately related to swedan ‘to burn’
The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc, Mont Blanc spans the French–Italian border, and at 4,810 m is the highest mountain in the Alps. The Alpine region area contains about a hundred peaks higher than 4000 metres, the altitude and size of the range affects the climate in Europe, in the mountains precipitation levels vary greatly and climatic conditions consist of distinct zones. Wildlife such as live in the higher peaks to elevations of 3,400 m. Evidence of human habitation in the Alps goes back to the Palaeolithic era, a mummified man, determined to be 5,000 years old, was discovered on a glacier at the Austrian–Italian border in 1991. By the 6th century BC, the Celtic La Tène culture was well established, Hannibal famously crossed the Alps with a herd of elephants, and the Romans had settlements in the region.
In 1800 Napoleon crossed one of the passes with an army of 40,000. The 18th and 19th centuries saw an influx of naturalists, writers, in World War II, Adolf Hitler kept a base of operation in the Bavarian Alps throughout the war. The Alpine region has a cultural identity. The Winter Olympic Games have been hosted in the Swiss, French, at present, the region is home to 14 million people and has 120 million annual visitors. The English word Alps derives from the Latin Alpes, maurus Servius Honoratus, an ancient commentator of Virgil, says in his commentary that all high mountains are called Alpes by Celts. The term may be common to Italo-Celtic, because the Celtic languages have terms for high mountains derived from alp and this may be consistent with the theory that in Greek Alpes is a name of non-Indo-European origin. According to the Old English Dictionary, the Latin Alpes might possibly derive from a pre-Indo-European word *alb hill, Albania, a name not native to the region known as the country of Albania, has been used as a name for a number of mountainous areas across Europe.
In Roman times, Albania was a name for the eastern Caucasus, in modern languages the term alp, albe or alpe refers to a grazing pastures in the alpine regions below the glaciers, not the peaks. An alp refers to a mountain pasture where cows are taken to be grazed during the summer months and where hay barns can be found. The Alps are a crescent shaped geographic feature of central Europe that ranges in a 800 km arc from east to west and is 200 km in width, the mean height of the mountain peaks is 2.5 km. The range stretches from the Mediterranean Sea north above the Po basin, extending through France from Grenoble, the range continues onward toward Vienna and east to the Adriatic Sea and Slovenia. To the south it dips into northern Italy and to the north extends to the border of Bavaria in Germany
Arolla is a village in the municipality of Evolène in the canton of Valais in Switzerland. It is situated at the end of the Val dHérens south of Sion at 1998m altitude in the Pennine Alps and it is situated at the foot of Mont Collon and is a popular start point for mountain expeditions. The village is a popular point on the Haute Route. The expedition can be tackled either by foot in the summer or by skis in the winter and it is on the itinerary of the Patrouille des Glaciers. In the winter, Arolla has its own small Alpine ski area which makes up for its lack of scale with reliable snow cover, spectacular scenery, there is a post office, mountain sports shop, hotel Du Pigne and bus stop in the small village centre. In addition to Mont Collon, the village is overlooked by Pigne dArolla, a 3796-metre mountain. Pra Gra, a hamlet above Arolla, can be reached by a moderate walk of approximately 80 mins. The views of Mont Collon and the trench at the end of the valley are particularly striking from this location.
The Arolla pine, known as the Swiss pine, a species in the white pine group that grows in the Alps
The Arolla Glacier is a 4 km long glacier situated in the Pennine Alps in the canton of Valais in Switzerland. In 1973 it had an area of 13.17 km2, the Glacier dArolla is in fact composed of two glacier, the Glacier du Mont Collon and the Haut Glacier dArolla. The Glacier du Mont Collon has a length of almost 5 km and it covers an area of 7 km2. It begins on the tips of Oren and flows north through a corridor bordered by the Little Mount Collon and Bishop west and it is connected to the west by the glacial Otemma Chermotane Pass, a wide passage covered with ice. On the west side of Mount Collon, the glacier undergoes a vertical drop of 600 meters with a slope of 60%, the part that follows this steep descent is called Bas Arolla glacier. It continues for about 1 kilometer to the north and the ice tongue stops at an altitude of 2160 meters, the glacier emerges from the Borgne dArolla which joins the Borgne Ferpècle flows into the Val dHerens before confluence with the Rhone plain. In the valley located east of Mount Collon is the Haut Glacier dArolla, with a length of 4 km and it originates from the snowfields hanging north of Mount Brulé and descends with a slope of 12 to 15% towards the northwest and north.
The glacier tongue ends at an altitude of 2550 m, list of glaciers in Switzerland Swiss Alps Swiss glacier monitoring network
A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains.
If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport.
The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Austria, San Marino, Italy covers an area of 301,338 km2 and has a largely temperate seasonal climate and Mediterranean climate. Due to its shape, it is referred to in Italy as lo Stivale. With 61 million inhabitants, it is the fourth most populous EU member state, the Italic tribe known as the Latins formed the Roman Kingdom, which eventually became a republic that conquered and assimilated other nearby civilisations. The legacy of the Roman Empire is widespread and can be observed in the distribution of civilian law, republican governments, Christianity. The Renaissance began in Italy and spread to the rest of Europe, bringing a renewed interest in humanism, exploration, Italian culture flourished at this time, producing famous scholars and polymaths such as Leonardo da Vinci, Galileo and Machiavelli. The weakened sovereigns soon fell victim to conquest by European powers such as France and Austria.
Despite being one of the victors in World War I, Italy entered a period of economic crisis and social turmoil. The subsequent participation in World War II on the Axis side ended in defeat, economic destruction. Today, Italy has the third largest economy in the Eurozone and it has a very high level of human development and is ranked sixth in the world for life expectancy. The country plays a prominent role in regional and global economic, military and diplomatic affairs, as a reflection of its cultural wealth, Italy is home to 51 World Heritage Sites, the most in the world, and is the fifth most visited country. The assumptions on the etymology of the name Italia are very numerous, according to one of the more common explanations, the term Italia, from Latin, was borrowed through Greek from the Oscan Víteliú, meaning land of young cattle. The bull was a symbol of the southern Italic tribes and was often depicted goring the Roman wolf as a defiant symbol of free Italy during the Social War. Greek historian Dionysius of Halicarnassus states this account together with the legend that Italy was named after Italus, mentioned by Aristotle and Thucydides.
The name Italia originally applied only to a part of what is now Southern Italy – according to Antiochus of Syracuse, but by his time Oenotria and Italy had become synonymous, and the name applied to most of Lucania as well. The Greeks gradually came to apply the name Italia to a larger region, excavations throughout Italy revealed a Neanderthal presence dating back to the Palaeolithic period, some 200,000 years ago, modern Humans arrived about 40,000 years ago. Other ancient Italian peoples of undetermined language families but of possible origins include the Rhaetian people and Cammuni. Also the Phoenicians established colonies on the coasts of Sardinia and Sicily, the Roman legacy has deeply influenced the Western civilisation, shaping most of the modern world
Bionaz is a comune sparso which extends over 143 square kilometres of the North-Eastern Valpelline area of the Aosta Valley region of northwest Italy. The commune lies on the side of the river Dora Baltea. The population of about 240 is dispersed among 20 or more small villages and hamlets including Plan-de-Veyne, which is the main centre. The commune belongs to the Unité des communes valdôtaines du Grand-Combin, thumb|left|200px|Road sign at Plan de Veyne. The commune’s statute designates the following localities, in addition to the capoluogo of Bionaz itself, Regione Autonoma Valle d’Aosta, Bollettino Ufficiale della Regione Autonoma Valle d’Aosta Bionaz at DMOZ
The Aosta Valley is a mountainous semi-autonomous region in northwestern Italy. It is bordered by Auvergne-Rhône-Alpes, France to the west, Switzerland to the north, covering an area of 3,263 km2 and with a population of about 128,000 it is the smallest, least populous, and least densely populated region of Italy. It is the only Italian region that is not sub-divided into provinces, provincial administrative functions are provided by the regional government. The region is divided into 74 comuni, the Aosta Valley is an Alpine valley which with its tributary valleys includes the Italian slopes of Mont Blanc, Monte Rosa, Gran Paradiso and the Matterhorn, its highest peak is Mont Blanc. The region is cold in the winter, especially when compared with other places in the Western Alps. Winter temperatures average around −3 °C or −4 °C, and summers between 13 °C and 15 °C, the snow season starts in November and lasts until March. Mist is common during the morning from April until October, the main communities in this area are Gressoney-Saint-Jean and Gressoney-La-Trinité.
The valleys above 1600 metres usually have a Cold Continental Climate, in this climate the snow season is very long, as long as 8 or 9 months at the highest points. During the summer, mist occurs almost every day and these areas are the wettest in the western Alps. Temperatures are low, between −7 °C and −3 °C in January, and in July between 10 °C and 13 °C. In this area is the town of Rhêmes-Notre-Dame. which may be the coldest town in the Western Alps, areas between 2000 metres and 3500 metres usually have a Tundra Climate, where every month has an average temperature below 10 °C. Temperature averages in Pian Rosà, at 3400 metres high, are −11.6 °C in January and 1.4 °C in July and it is the coldest place in Italy where the climate is verifiable. In the past, above 3500 metres, all months were having a temperature below freezing. In recent years there was a rise in temperatures. See as an example the data for Pian Rosà, the first inhabitants of the Aosta Valley were Celts and Ligures, whose language heritage remains in some local placenames.
Thus, the name Valle dAosta literally means Valley of Augustus, saint Anselm of Canterbury was born in Aosta in 1033 or 1034. In the mid-13th century Emperor Frederick II made the County of Aosta a duchy, the region remained part of Savoy lands, with the exceptions of French occupations from 1539 to 1563, in 1691, between 1704 and 1706. As part of the Kingdom of Sardinia it joined the new Kingdom of Italy in 1861 and it was ruled by the First French Empire between 1800 and 1814