Gambarogno

Caviano is a former municipality in the district of Locarno in the canton of Ticino in Switzerland. On 25 April 2010, the former municipalities of Caviano, Contone, Gerra Gambarogno, Indemini, Magadino, Piazzogna, San Nazzaro, Sant'Abbondio and Vira Gambarogno merged in the new municipality of Gambarogno.

Sant`Abbondio is a former municipality in the district of Locarno in the canton of Ticino in Switzerland. On 25 April 2010, the former municipalities of Caviano, Contone, Gerra Gambarogno, Indemini, Magadino, Piazzogna, San Nazzaro, Sant'Abbondio and Vira Gambarogno merged in the new municipality of Gambarogno.

Ranzo-Sant'Abbondio railway station (Italian: Stazione di Ranzo-Sant'Abbondio) is a railway station in the municipality of Gambarogno, in the Swiss canton of Ticino. It is an intermediate stop on the standard gauge Cadenazzo–Luino line of Swiss Federal Railways and is final station north of the border between Switzerland and Italy.

Gerra (Gambarogno) is a former municipality in the district of Locarno in the canton of Ticino in Switzerland. On 25 April 2010, the former municipalities of Caviano, Contone, Gerra Gambarogno, Indemini, Magadino, Piazzogna, San Nazzaro, Sant'Abbondio and Vira Gambarogno merged in the new municipality of Gambarogno.

Delio Lake is a lake in the Province of Varese, Lombardy, Italy. At an elevation of 930 m, its surface area is about 30 ha (74 acres). It serves as the upper reservoir for the pumped-storage Roncovalgrande Hydroelectric Plant.

Pino sulla Sponda del Lago Maggiore is a former municipality of Italy, now frazione of the municipality of Maccagno con Pino e Veddasca in the Province of Varese. It held the status of comune until 2014 when it was merged with Maccagno and Veddasca to form the new municipality. It lies about located about 110 km northwest of Milan and about 70 km northwest of Varese, on the border with Switzerland. Until its suppression, Pino sulla Sponda del Lago Maggiore held along with San Valentino in Abruzzo Citeriore, the record of Italian comune with the longest name (30 letters).

Gerra (Gambarogno) railway station (Italian: Stazione di Gerra (Gambarogno)) is a railway station in the municipality of Gambarogno, in the Swiss canton of Ticino. It is an intermediate stop on the standard gauge Cadenazzo–Luino line of Swiss Federal Railways.

Pino-Tronzano railway station (Italian: Stazione di Pino-Tronzano) is a railway station in the comune of Maccagno con Pino e Veddasca, in the Italian region of Lombardy. It is an intermediate stop on the standard gauge Cadenazzo–Luino line of Rete Ferroviaria Italiana and is final station south of the border between Switzerland and Italy.

Tronzano Lago Maggiore is a comune (municipality) in the Province of Varese in the Italian region Lombardy, located about 80 km northwest of Milan and about 30 km north of Varese, on the border with Switzerland. Tronzano Lago Maggiore borders the following municipalities: Brissago (Switzerland), Cannobio, Maccagno con Pino e Veddasca.

Monte Paglione is a mountain of the Varese Prealps, with an elevation of 1,554 metres (5,098 ft).

The Brissago Islands (Italian: Isole di Brissago) are a group of two islands located in the Swiss part of Lake Maggiore close to Ronco sopra Ascona and Brissago. Both islands belong to the district of Locarno, in the canton of Ticino. San Pancrazio (also known as Grande Isola) is larger and is well known for its botanical garden. On the smaller island, known as Isolino, Isola Piccola or Isola di Sant’Apollinare, the vegetation is allowed to develop naturally. Both benefit from the mild climate provided by the lake. The minimum distance from the shore is 1,040 metres for San Pancrazio and 930 metres for Sant'Apollinare, making them the farthest islands from the shore in Switzerland. Both islands culminate at 200 metres above sea level or 7 metres above lake level (193 m).

The Roncovalgrande Hydroelectric Plant, also known as the Delio Hydroelectric Plant, is located 3 kilometres (1.9 mi) north of Maccagno in the Province of Varese, Lombardy, Italy. Using the pumped-storage hydroelectric method, the power plant has an installed capacity of 1,016 megawatts (1,362,000 hp). The power plant was complete in 1971 and the last generator operational in 1973. During construction, the upper reservoir, Lago Delio, was expanded in capacity with two gravity dams; a northern and southern, 28.5 metres (94 ft) and 36 metres (118 ft) in height, respectively. The lower reservoir, Lago Maggiore, already existed. The power plant itself is located underground in between Delio and Maggiore. To produce electricity, water is released from the upper reservoir to the power plant via two 1,100 metres (3,600 ft) long penstocks. At the power plant, eight four-stage Pelton turbine-generators generate electricity. Power generation occurs during periods of high energy demand and when energy demand is low, pumping usually occurs. The pumps are on the same shaft as the Pelton turbines and send water from the lower to the upper reservoir to serve as stored energy. Later on, this water will be sent back down to the power station and the process will repeat. The difference in elevation between the upper and lower reservoirs affords a hydraulic head of 736.25 m (2,416 ft) and Lago Delio has a usable storage capacity of 10,000,000 cubic metres (8,100 acre⋅ft).