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Lake Maggiore, Lombardy/Piedmont (Italy)

Lake Maggiore or Verbano is a large lake located on the south side of the Alps. It is the second largest lake in Italy and the largest in southern Switzerland. The lake and its shoreline are divided between the Italian regions of Piedmont and Lombardy and the Swiss canton of Ticino. Located halfway between Lake Orta and Lake Lugano, Lake Maggiore extends for about 65 kilometres (40 miles) between Locarno and Arona.

The climate is mild in both summer and winter, producing Mediterranean vegetation, with many gardens growing rare and exotic plants. Well-known gardens include those of the Borromean and Brissago Islands, that of the Villa Taranto in Verbania, and the Alpinia Botanical Garden above Stresa.

Lake Maggiore is drained by the Ticino, a main tributary of the Po. Its basin also collects the waters of several large lakes, notably Lake Lugano (through the Tresa), Lake Orta (through the Toce) and Lake Varese (through the Bardello).

Lake Maggiore is 64.37 km (40 mi) long, and 3 to 5 km (2 to 3 mi) wide, except at the bay opening westward between Pallanza and Stresa, where it is 10 km (6 mi) wide. It is the longest Italian lake, although Lake Garda has a greater area. Its mean height above the sea level is 193 metres; a deep lake, its bottom is almost everywhere below sea-level: at its deepest, 179 metres below. Its form is very sinuous so that there are few points from which any considerable part of its surface can be seen at a single glance. If this lessens the effect of the apparent size, it increases the variety of its scenery. While the upper end is completely alpine in character, the middle region lies between hills of gentler form, and the lower end advances to the verge of the plain of Lombardy. Lake Maggiore is the most westerly of the three great southern prealpine lakes, the others being Lake Como and Lake Garda.

The lake basin has tectonic-glacial origins and its volume is 37 cubic kilometres (9 cu mi). The lake has a surface area of about 213 square kilometres (82 sq mi), a maximum length of 54 km (34 mi) (on a straight line) and, at its widest, is 12 km (7 mi). Its main tributaries are the Ticino, the Maggia (forming a very large delta), the Toce (by which it receives the outflow of Lake Orta) and the Tresa (which is the sole emissary of Lake Lugano). The rivers Verzasca, Giona, and Cannobino also flow into the lake. Its outlet is the Ticino which, in turn, joins the river Po just south-east of Pavia.

The lake's jagged banks are surrounded by the Pennine and Lepontine Alps, and Lugano Prealps. Prominent peaks around the lake are the Gridone, Monte Tamaro, Monte Nudo and the Mottarone. The highest mountain overlooking Lake Maggiore is Monte Rosa (4,634 m, 15,203 ft), located about 50 kilometres (31 mi) west of it. The western bank is in Piedmont (provinces of Novara and Province of Verbano-Cusio-Ossola) and the eastern in Lombardy (province of Varese), whereas the most northerly section extends 13 kilometres (8 mi) into the canton of Ticino, where it constitutes its lowest point above sea level as well as that of Switzerland. The culminating point of the lake's drainage basin is the Grenzgipfel summit of Monte Rosa at 4,618 metres (15,151 ft) above sea level.

Lake Maggiore weather is humid subtropical (Cfa in the Köppen climate classification). During winter, the lake helps to maintain a higher temperature in the surrounding region (since water releases heat energy more slowly than air). The temperatures are cooled down in summer by the breezes that blow on the water's surface, changing its colour. The area enjoys nearly 2300 hours of sunshine a year and an average annual temperature of 15.5 °C (60 °F). The water of the lake has a comfortable temperature of 20 °C (68 °F) to 22 °C (72 °F) in July and August. In winter snowfall is erratic and primarily affects the higher elevations. Rainfall is heaviest in May and lowest during the winter months.

The flora is strongly influenced by the lake basin and that has allowed the proliferation of typically Mediterranean plants, and also of plants native to the Atlantic areas favoured by the composition of the soil and the abundance of siliceous rocks. Lemons, olive trees and bay olive trees grow there. The acidophiles, camellias, azaleas, rhododendrons and magnolias that can be admired in the gardens that follow one another on the Piedmontese coast thrive. The spontaneous vegetation is composed of yew, holly and chestnut trees on the surrounding hills.

In the lake two species of whitefish live, Coregonus and, less widespread, Coregonus lavaretus. Both live in deep water and come ashore only during the spawning in early December. There are also perch, pike, chub, burbot, torpedo, eels and Alburnus arborella. The lake is home to several species of nesting waterfowl, it also represents an important corridor, a place of rest and feeding for migrations.

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Uploaded on December 29, 2021
Taken on December 29, 2021