Piz Vatgira

Piz Gannaretsch is a mountain in the Lepontine Alps, overlooking Sedrun in Graubünden. At 3,040 metres above sea level, its summit is the highest point of the range lying between St Gotthard Pass and Lukmanier Pass. The massif of Piz Gannaretsch separates the valleys of Lake Nalps (west) and Lake Sontga Maria (east). A glacier named Glatscher da Gannaretsch lies over the north-western flanks of Piz Gannaretsch.

Lai da Nalps is a reservoir in the municipality of Tujetsch, Grisons, Switzerland. It has a capacity of 45 million m³ and a surface area of 0.91 km². The reservoir is connected to Lai da Sontga Maria and Lai da Curnera in neighboring valleys.

Piz Maler is a mountain of the Swiss Lepontine Alps, located south of Sedrun in the canton of Graubünden. It lies at the northern end of the range between Lai da Curnera and Lai da Nalps.

Piz Pazzola is a mountain of the Swiss Lepontine Alps, situated near Sedrun in the canton of Graubünden. It lies on the range west of the Val Medel.

Lai da Curnera is a reservoir on the river Rein da Curnera in the municipality of Tujetsch, in the Grisons, Switzerland. The reservoir is linked to Lai da Sontga Maria and Lai da Nalps in the neighboring valley. The lake's volume is 41.1 million cubic metres (33,300 acre⋅ft) and its surface area 81 ha (200 acres). All surrounding rivers are diverted into the reservoir, among them the Rein da Tuma, coming from Lai da Tuma (Tomasee), near the Oberalp Pass and known as the source of the river Rhine. The Vorderrhein, or Anterior Rhine as the Rhine is called in this area, passes just about 2 kilometers north to the barrier of the lake. A multiday trekking route is signposted along the young Rhine called Senda Sursilvana, from where the barrier can be spotted easily.

The Rein da Maighels (German: Maighelserrhein) is one of the main tributaries of the Rhine (see Sources of the Rhine) and is a tributary to the Rein da Curnera. The firm Kraftwerke Vorderrhein AG has built a hydropower dam creating a reservoir, called the Lai da Curnera, into which both rivers now flow. The origin of the Rein da Maighels is the Maghels Glacier (Romansh: Glatscher da Maighels) on the Piz Ravetsch near the point where the cantons of Graubünden, Ticino and Uri meet. From the glacier, the Rein da Maighels flows north, through the Val da Maighels, then east, through Val Platta' between Piz Cavradi and Piz Piogn Crap, then into Val Curnera and into the Lai da Curnera reservoir.

Piz Alpetta is a mountain of the Swiss Lepontine Alps, located south of Tschamut in the canton of Graubünden. It lies north of Piz Ravetsch, on the range between the Val Maighels and the Val Curnera.

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.

Dieni railway station (German: Bahnhof Dieni) is a railway station in the municipality of Tujetsch, in the Swiss canton of Grisons. It is an intermediate stop on the 1,000 mm (3 ft 3+3⁄8 in) gauge Furka Oberalp line of the Matterhorn Gotthard Bahn.

Porta Alpina (from Romansh: Alpine Gate) was a proposed railway station to be located in the middle of the Gotthard Base Tunnel, serving the Alpine village of Sedrun in Switzerland. It was intended to promote tourism and the economy in the region of Graubünden. The project was put on hold as uneconomical in 2007, and then indefinitely shelved in 2012. The current multifunction station is only used for emergency stops and maintenance. The portal lies 800 m (2,600 ft) above the tunnel.

Rueras railway station (German: Bahnhof Rueras) is a railway station in the municipality of Tujetsch, in the Swiss canton of Grisons. It is an intermediate stop on the 1,000 mm (3 ft 3+3⁄8 in) gauge Furka Oberalp line of the Matterhorn Gotthard Bahn.