Gendarm (Breithorn)

The Eastern Breithorn (German: Breithorn (Ostgipfel), Italian: Breithorn Orientale) but also referred as the western Breithorn Twin (German: westlicher Breithornzwilling), is a peak of the Pennine Alps, located on the border between Switzerland and Italy, between the canton of Valais and the region of Aosta Valley. It is part of the Breithorn range, located east of the Theodul Pass. It lies between the Central Breithorn and its other twin, the Gendarm (or eastern Breithorn Twin). On its north side it overlooks the Breithorn Glacier.

The Breithorn Twins (German: Breithornzwillinge) are twin peaks of the Breithorn range of the Pennine Alps, located on the border between Switzerland and Italy, between the canton of Valais and the region of Aosta Valley. It is located east of the Theodul Pass. The twin peaks are called Eastern Breithorn/western Breithorn Twin (4,139 m) and Gendarm/eastern Breithorn Twin (4,109 m). They are about 115 m (377 ft) apart.

The Roccia Nera (Italian for Black Rock, French: Roche noire, German: Schwarzfluh) is a peak of the Breithorn range in the Pennine Alps, on the boundary between the Aosta Valley (northern Italy) and canton of Valais (southern Switzerland). It is the easternmost summit of the Breithorn massif, located east of the Gendarm (or eastern Breithorn Twin). It overlooks the Schwarztor (English: Black Gate) pass on its east side.

The Central Breithorn (German: Breithorn (Mittelgipfel), Italian: Breithorn Centrale) is a peak of the Breithorn range in the Pennine Alps, located on the border between Switzerland and Italy, between the canton of Valais and the region of Aosta Valley. It is located east of the main summit of the Breithorn and west of the western Breithorn Twin.

Pollux (Italian: Polluce) is a mountain in the Pennine Alps on the border between Valais, Switzerland and the Aosta Valley in Italy. It is the lower of a pair of twin peaks (German: Zwillinge), the other being Castor, named after the Gemini twins of Roman mythology. Pollux' peak is at an elevation of 4,089 m (13,415 ft). It is separated from Castor by a pass at 3,846 m (12,618 ft), named Passo di Verra in Italian, Col de Verra in French and Zwillingsjoch in German. The first ascent was by Jules Jacot from Geneva with guides Josef-Marie Perren and Peter Taugwalder (father) on August 1 (the Swiss national day) 1864. Their route was via the Schwarztor, a pass first crossed by John Ball and Gabriel Zumtaugwald in 1845. The impressive north ridge was first climbed by Captain John Percy Farrar (a future President of the Alpine Club) and Wylie Lloyd with guide Josef Pollinger of St. Niklaus in the canton Valais on 18 August 1893. Ascents are usually made from the Refuge Ottorino Mezzalama (3,036 m), the Monte Rosa hut (2,795 m); if traversing the peaks via Pollux's north ridge, PD+, the Refuge Quintino Sella au Félik (3,585 m), and the Rossi-Volante bivouac hut (3,850 m). The first winter and ski ascent of Pollux was by Dr Alfred von Martin and Karl Planck on 7 March 1913.

The Breithorn (German for literally "broad horn"; 13,661 ft. or 4,164 m) is a mountain range of the Pennine Alps with its highest peak of the same name (but also called Breithorn (Western Summit)), located on the border between Switzerland and Italy. It lies on the main chain of the Alps, approximately halfway between the Matterhorn and Monte Rosa and east of the Theodul Pass. Most of the massif is glaciated and includes several subsidiary peaks, all located east of the main summit: the Central Breithorn, the western Breithorn Twin (or Eastern Breithorn), the Gendarm (or eastern Breithorn Twin) and the Roccia Nera. The main summit is sometimes distinguished by the name Western Breithorn (German: Breithorn (Westgipfel), Italian: Breithorn Occidentale). The nearest settlements are Zermatt (Valais) and St-Jacques (Aosta Valley). The Breithorn is considered the most easily climbed 4,000 m Alpine peak. This is due to the Klein Matterhorn cable car which takes climbers to over 3,820 m (12,700 ft) from Zermatt for a starting point. The standard route (SSW flank) is from the Italian side of the mountain (the south side) and continues over a glacial plateau before climbing to the summit on a 35 degree snow slope. However, inexperienced mountaineers may run into severe difficulty if caution is not taken near cornices or in bad weather. For experienced climbers wanting more of a challenge, the half traverse of the Breithorn crest is another option. The Breithorn was first climbed in 1813 by Henry Maynard (climber), Joseph-Marie Couttet, Jean Gras, Jean-Baptiste Erin and Jean-Jacques Erin.

Refuge Ottorino Mezzalama (original name Italian: Refugio Ottorino Mezzalama) is a refuge in the Alps in Aosta Valley, Italy.

Castor (Italian: Castore) is a mountain in the Pennine Alps on the border between Valais, Switzerland and the Aosta Valley in Italy. It is the higher of a pair of twin peaks (German: Zwillinge), the other being Pollux, named after the Gemini twins of Roman mythology. Castor's peak is at an elevation of 4,225 m (13,862 ft), and it lies between Breithorn and the Monte Rosa. It is separated from Pollux by a pass at 3,847 m (12,621 ft), named Passo di Verra in Italian and Zwillingsjoch in German. Ascents are usually made from the alpine hut Capanna Quintino Sella on the Italian side, by means of the Felikjoch and the long and narrow southeast ridge. From the Swiss side, ascents start from Klein Matterhorn and go by way of the Italian glacier Grand Glacier of Verra and the mountain's west flank. The first ascent was made on August 23, 1861.

Gobba di Rollin (Italian, French: Dos de Rollin; 3,898 m) is a mountain of the Pennine Alps, straddling the border between Switzerland and Italy. It is located south of the Breithorn and it is largely covered by ice, the summit area being particularly flat. On the north side is the Breithorn Plateau of the Theodul Glacier, on the east side is the Verraz Glacier and on the south is the Glacier d'Aventine. Gobba di Rollin is notable as having the highest ski lift in Europe on its top, since it is the highest point of the ski area Matterhorn Glacier Paradise on the Theodul Glacier, between Zermatt and Breuil-Cervinia. It is connected to both the Klein Matterhorn and Testa Grigia by ski lifts. The shortest access is from the Klein Matterhorn station (3,820 m), less than two kilometres away, from where it can be easily reached by a piste on the glacier. The summit has even been reached via the Theodul Pass by 4x4 vehicles, a European record.

The Klein Matterhorn (sometimes translated as Little Matterhorn) is a peak of the Pennine Alps, overlooking Zermatt in the Swiss canton of Valais. At 3,883 metres (12,740 ft) above sea level, it is the highest place in Europe that can be reached by aerial tramway or gondola lift, as well as by any other means of transport. The Klein Matterhorn is part of the Breithorn massif and overlooks on its south side the almost equally high flat glacier named Breithorn Plateau, just north of the international border with Italy. The name "Klein Matterhorn" is a reference to its much larger neighbour, the Matterhorn, which lies 7 km (4.3 mi) away across the Theodul Pass. The Klein Matterhorn, with the adjacent ski-lifts to the slightly higher Gobba di Rollin, is also a year-round ski area, marketed as "Matterhorn Glacier Paradise", and part of the international ski area between Zermatt and Breuil-Cervinia. Fast ascents to a height above 3,000 metres (9,800 ft) will frequently lead to headaches or other symptoms of altitude sickness with sensitive people.

The Gorner Glacier (German: Gornergletscher) is a valley glacier found on the west side of the Monte Rosa massif close to Zermatt in the canton of Valais, Switzerland. It is about 12.4 km (7.7 mi) long (2014) and 1 to 1.5 km (0.62 to 0.93 mi) wide. The entire glacial area of the glacier related to Gorner Glacier is 53 km2 (20 sq mi) (2007), which makes it the second largest glacial system in the Alps after the Aletsch Glacier system; however it ranks only third in length behind the Aletsch and Fiescher Glacier, respectively. Numerous smaller glaciers connect with the Gorner Glacier. Its (former) tributaries are (clockwise on this map): Gornergletscher (after which the whole system is named, but the upper part is now disconnected from the lower part), Monte Rosa Gletscher, Grenzgletscher (nowadays by far its main tributary, now disconnected from the actual Gornergletscher), Zwillingsgletscher, Schwärzegletscher, Breithorngletscher, Triftjigletscher, and Unterer Theodulgletscher (although the last three ones are actually disconnected now). The Grenzgletscher (English: Border Glacier) between the central Monte Rosa massif and the Liskamm to the south is nowadays by far the lower Gorner Glacier's main tributary. The Gorner Glacier's upper part is almost already disconnected from its lower part. Also the former tributaries Breithorngletscher, Triftjigletscher, and Unterer Theodulgletscher lost their connections to the Gorner Glacier during the last century; the Lower Theodul Glacier became disconnected in the 1980s. An interesting feature of this glacier is the Gornersee, an ice marginal lake at the confluence area of the Gorner- and Grenzgletscher. This lake fills every year and drains in summer, usually as a Glacial lake outburst flood. This is one of few glacial lakes in the Alps exhibiting this kind of behavior. There are also several interesting surface features including crevasses and "table top" forms where large surface boulders have been left stranded above the glaciers surface. These tabular rocks are supported by ice that the boulder has sheltered from melting that has effected the more exposed surrounding ice. Due to the immense information about the glacier, it is perfect for a glacier project. It is the source of the river Gornera, which flows down through Zermatt itself. However, most of its water is captured by a water catchment station of the Grande Dixence hydroelectric power plant. This water then ends up in the Lac des Dix, the main reservoir of Grande Dixence. The glacier as well as the surrounding mountains can be seen from the Gornergrat (3,100 m or 10,200 ft), connected from Zermatt by the Gornergrat Railway.

The Riffelhorn (2,928 m) is a mountain in the Swiss section of the Pennine Alps, located south of Zermatt in the canton of Valais. The Riffelhorn forms part of the Gorner ridge and provides excellent rock climbing facilities having several routes of a different Climbing grades. It has been used a long time by the local Alpine guides to train rock climbing skills for climbers before ascending on higher mountains. It is also very popular view point being in the middle of one of the most famous valleys in the Alps, between the Matterhorn and Monte Rosa. Also the altitude of nearly 3,000 m gives a needed atmosphere of Alpine conditions. Nearest access is Rotenboden train station. Gornergratbahn continues from here up to summit of Gornergrat. On the northern side of the mountain lies the Riffelsee.