Lago di Ganna is a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

Valganna Valganna is a ''comune'' (municipality) within the Province of Varese in the Italian region Lombardy, located about 60 km northwest of Milan and about 13 km north of Varese. The name Valganna is a compound of valley and Ganna, which is ...

in the

Province of Varese The province of Varese ( it, provincia di Varese) is a Provinces of Italy, province in the region of Lombardy in northern Italy. Its capital is the city of Varese (population of 80,857 inhabitants), but its largest city is Busto Arsizio. The head ...

Lombardy Lombardy ( it, Lombardia, Lombard language, Lombard: ''Lombardia'' or ''Lumbardia' '') is an administrative regions of Italy, region of Italy that covers ; it is located in the northern-central part of the country and has a population of about 10 ...

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

. It has an area of 0,07 km² and a maximum depth of 3 m. It is part of a natural reserve.

Geography

It is located in the

comune The (; plural: ) is a local administrative division of Italy, roughly equivalent to a township or municipality. It is the third-level administrative division of Italy, after regions ('' regioni'') and provinces (''province''). The can also ...

. The lake has as an underground tributary the river

Margorabbia The Margorabbia is the river (Stream#Intermittent and ephemeral streams, intermittent stream) of Valtravaglia, a valley in the province of Varese, Lombardy, Italy. It is a tributary of the Tresa which it joins a few hundred metres upstream of Lak ...

, which than becomes an emissary that flows into the near

Lago di Ghirla Lago di Ghirla is a lake at Valganna in the Province of Varese, Lombardy, Italy. Geography Ghirla Lake is at 442 metres above sea level. Its affluent is river Margorabbia which is a subterranean river coming from Lake Ganna. Its maximal d ...

. It is entirely part of the

frazione A ''frazione'' (plural: ) is a type of subdivision of a ''comune'' (municipality) in Italy, often a small village or hamlet outside the main town. Most ''frazioni'' were created during the Fascist era (1922–1943) as a way to consolidate territ ...

of ''Ganna'' and it's comprised in the

Cinque Vette Park The Cinque Vette Park is a natural park, established by the Region of Lombardy on 19 June 2017. The park is located in the north-eastern part of the Province of Varese, in the Italian region of Lombardy. It takes the name from the main geographic ...

History

Between the XII and XIII centuries the

benedictine monks The Benedictines, officially the Order of Saint Benedict ( la, Ordo Sancti Benedicti, abbreviated as OSB), are a Christian monasticism, monastic Religious order (Catholic), religious order of the Catholic Church following the Rule of Saint Benedic ...

changed the

hydrography Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary p ...

through some reclamation works. In 1984 the lake became the center of the ''Natural Reserve of the Lake Ganna''.

Fauna

The population in Lake Ganna is mainly represented by pikes and tenches. Ganna Province of Varese {{lombardy-geo-stub