Lago Retico

Campo Blenio was a municipality in the district of Blenio in the canton of Ticino in Switzerland. On 25 January 2005, the cantonal authorities announced that Campo Blenio would merge with Aquila, Ghirone, Olivone and Torre to form a new municipality to be called Blenio. This union was carried through on 22 October 2006.

Pizzo di Cadrèigh (2,516 m) is a mountain of the Swiss Lepontine Alps, located west of Olivone in the canton of Ticino. It lies south of the Scopi, between the Val di Campo and the Valle Santa Maria.

Ghirone was a municipality in the district of Blenio in the canton of Ticino in Switzerland. On 25 January 2005, the cantonal authorities announced that Ghirone would merge with Aquila, Campo Blenio, Olivone and Torre to form a new municipality to be called Blenio. This union was carried through on 22 October 2006.

The Sosto (2,220.6 m) is a mountain of the Swiss Lepontine Alps, overlooking Olivone in the canton of Ticino. It lies south of the lake of Luzzone and west of the Torrone di Nav.

Pizzo Pianca is a mountain of the Swiss Lepontine Alps, located north of Olivone in the canton of Ticino. On its southern side it overlooks the lake of Luzzone.

Olivone was a municipality in the district of Blenio in the canton of Ticino in Switzerland. On 25 January 2005, the cantonal authorities announced that Olivone would merge with Aquila, Campo Blenio, Ghirone and Torre to form a new municipality to be called Blenio. This union was carried through on 22 October 2006.

Blenio is a municipality of the district of Blenio, in the canton of Ticino, Switzerland. Blenio was created on 22 October 2006 when it incorporated the formerly autonomous municipalities of Aquila, Campo Blenio, Ghirone, Olivone and Torre of the upper Blenio valley. A legal challenge to the merger was raised by Aquila, but was rejected by the Federal Court on 18 April 2006.

Piz Caschleglia is a mountain of the Swiss Lepontine Alps, located south of Curaglia in the canton of Graubünden. It lies north of Piz Medel, between the Val Medel and the Val Sumvitg.

The Val Medel () is a righthand side valley of the Surselva valley in Graubünden, Switzerland. It is approximately 15 km (9.3 mi) long and stretches from Disentis (1,100 m (3,600 ft) above sea level) to the south, where it ends at Lai da Sontga Maria reservoir on Lukmanier Pass (906 m (2,972 ft) above sea level). There is a road through the valley and over Lukmanier Pass into Ticino. The lower 3 kilometers (1.9 mi) of the valley contains a narrow gorge, known as the Medelserschluch or Las Ruinas, which widens to the green and fertile Trog valley at the village of Curaglia.

Medel (Romansh pronunciation: [ˈmɛːdəl] ) is a municipality in the Surselva Region in the Swiss canton of Graubünden.

Piz Miez (2,956 m) is a mountain of the Swiss Lepontine Alps, located south of Tenigerbad in the canton of Graubünden. It lies north of Piz Medel, in the Val Sumvitg.

Lago di Luzzone is a reservoir in Ticino, Switzerland. The reservoir has a volume of 108 million m³ and a surface area of 1.27 km2 (0.49 sq mi). It is located in the upper Blenio valley, in the municipalities of Ghirone and Aquila. The reservoir is surrounded by peaks of the Adula Alps, some of which rise more than 3,000 meters, and is located at a height of 1,606 meters above sea level. The highest is Piz Terri (3,149 m), on the north-east side of the lake, followed by the Plattenberg (3,041 m), on the east side. The Torrone di Nav (2,832 m) overlooks the lake from the south, while Pizzo Pianca (2,377 m) overlooks the lake from the north. The arch dam Luzzone was completed in 1963. In the years 1997–1998, its height was increased by 17 m. The dam is frequently used by the popular YouTube channel How Ridiculous to perform drop tests, and a Top Gear episode showed an occupied car doing a bungee jump. One wall of the dam currently features the world's highest artificial climbing wall. A German manufacturer of climbing holds installed a line of over 650 artificial holds and bolts. The course covers a vertical distance of 165 meters, going from the base of the dam to the top. The climb must be done as a multi-pitch bolted sport climbing route. Furthermore, the lowest holds were placed several meters above the ground to deter casual visitors from climbing on them.