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Lake Loppio

Provincial nature reserve

Lake Loppio is undoubtedly one of Trentino's best-known nature reserves, located in the valley that joins the Adige and Garda furrows. Originating from a double barrage (a large landslide obstructed the north-western side, while the Rio Gresta with its materials blocked the opposite side), the lake is now a swamp, as it was drained in the 1950s, with the construction of the tunnel between the Adige River and Lake Garda.

The Reserve is also a Special Area of Conservation and is one of the protected areas that make up the local Monte Baldo Nature Park.

Description

The lake, of fair size and intimately linked to the communities of Loppio and Mori, was drained with the works - in 1954-59 - for the construction of the tunnel between the Adige River and Lake Garda, aimed at pouring excess river water into the latter during flooding and thus eliminating flooding dangers for the rest of the Adige Valley and the city of Verona.
The tunnel passes right under the lake, intercepting the water table that fed it and the water table connected to it, creating the current marshland.

Today, Lake Loppio is the largest marsh area in Trentino: in fact, more than thirty years after the tunnel was built, the environment has reacted and consolidated on the status of a marsh periodically invaded by large quantities of water.

The vegetation established in the biotope is very interesting. Plant associations of weeds and pioneer wetland grasses predominate, but there are also marshy herbaceous associations, as well as patches of hygrophilous scrub.

The environmental mosaic in the protected area is extraordinarily varied and articulated, guaranteeing survival opportunities for a truly remarkable number of wildlife species.
It can be said that every faunal group is well represented here, since such diverse environments (e.g. marshes and rocky areas) coexist in the Biotope that they provide shelter for animals with very different ecological needs.

Visiting facilities

  • Visiting path

Publications

  • protection and enhancement project
  • brochure
  • trail guide (in draft)

Studies

  • naturalistic and cadastral definition project
  • studies by the Scientific Commission

Lago di Loppio Provincial Nature Reserve - permitted activities and prohibitions

Extract from the establishing resolution and any amending resolutions, with the permitted activities and the limits and prohibitions laid down for the Provincial Nature Reserve.
The indications given in the resolutions referred to at the bottom of the page are in any case authoritative.

Address

Municipalities concerned

Mori
Nago-Torbole

Area coordinates

Surface area

Unità di misuraValore
hectares 112

Additional information

Items of interest

Lake Loppio

Special Area of Conservation (SAC)

A vast lake basin in the valley incision between the Monte Bondone and Monte Baldo groups, which until 30 years ago occupied Lake Loppio, which then dried up. At the bottom of the ancient lake basin, a very rich vegetation of wet and marshy meadows has now developed, in the midst of which the white willow is spreading. Along some stretches of the banks there are peat banks with a rare vegetation of Cyperaceae.

Related documents

Deliberazione della Giunta Provinciale n. 11130 del 19/10/1987

Individuazione del biotopo di interesse provinciale denominato 'Lago di Loppio' ai sensi dell'art. 5 della legge provinciale 23 giugno 1986, n. 14 e s.m., 'Norme per la salvaguardia dei biotopi di rilevante interesse ambientale, culturale e scientifico'.

Deliberazione della Giunta Provinciale n. 17031 del 20/12/1996

Modifica della deliberazione della Giunta Provinciale n. 11130 d.d. 19 ottobre 1987: Individuazione del biotopo di interesse provinciale denominato 'Lago di Loppio' ai sensi dell'art. 5 della legge provinciale 23 giugno 1986 n. 14 e s.m. - 'Norme per la salvaguardia dei biotopi di rilevante interesse ambientale culturale e scientifico'.

Deliberazione della Giunta Provinciale n. 580 del 31/03/2023

L.p. 23 maggio 2007, n. 11, articolo 35, comma 4 - Modificazione della deliberazione della Giunta provinciale 19 ottobre 1987, n. 11130 - 'Individuazione del Biotopo di interesse provinciale denominato 'Lago di Loppio' ai sensi dell'art. 5 della Legge provinciale 26 giugno 1986, n.14 - 'Norme per la salvaguardia dei biotopi di rilevante interesse ambientale, culturale e scientifico', già modificata con deliberazione della Giunta provinciale del 20 dicembre 1996, n. 17031.

Monte Baldo Local Nature Park

Already known in the 16th century as the 'Garden of Italy' for its astonishing botanical richness, Monte Bando is still an excellence for enthusiasts. Overlooking Lake Garda, Trentino's first Local Nature Park boasts an extraordinary diversity of natural and semi-natural environments, unique in terms of flora, fauna and landscape beauty.

For these reasons, in 2013, by the will of the local communities, the Network of Reserves was activated, which was later given the name of Local Nature Park by the Provincial Council.

Last modified: 04/03/2026 12:20 pm

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