| The Paluaccio Reserve and Fort Oga
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The Fort Venini in Oga

The military Fort Venini in Oga was erected in the defense of the main alpine passes of the Alta Valtellina, and was built between 1908 and 1914 in the village of Dossaccio.

The fort’s structure is decidedly massive and includes four armoured domes in steel where there were the cannons, that thanks to the particular orientation east-west, could rotate and defend all the valleys and the passes potentially subject to danger from the enemy.

After the First World War, the structure was entrusted to the border guards until 1938, the year in which it was named after the Captain Venini, who received the gold medal for military valor. During the Repubblica di Salò it was occupied by fascists and Germans, and later liberated by the partisans.

At the end of the war, the fort was abandoned by troops but remained guarded until 1958, when it was finally abandoned.

Today, the Fort Venini is open and can be visited both during the summer season and the winter season.

Fort Venini opening Summer 2020

From 20 June the Fortress  is open every day from 09:00 a.m. to 6:30 p.m.
(last access 30 min. before closing time)


  • adults: € 5;
  • children up to the age of 10: free;
  • disabled people: free of charge – Reduced admission for 1 accompanying person: € 2,50
  • groups of more than 10 people: € 4 per person

Possibility of guided tours (max. 30 people – the reservation is appreciated): € 35 (in addition to the entrance ticket)

For further information: Pro Loco Valdisotto (tel. +39 0342 950166 / +39 334 80008606)

The Natural Paluaccio Reserve of Oga

The Natural Reserve Paluaccio of Oga is of particular naturalistic interest because it has the environment of peat bog, one of the few remaining in Italy. Created in 1983, the bog dates back to about 13,000 years ago and covers a surface area of more than 74 acres (30 hectares).

Inside, the bog still retains a multiplicity of environments of great naturalistic interest (bog low and intermediate, peaty meadows, grasslands in Nardo, wooded areas), including species very heterogeneous, such as the Drosera rotundifolia, a Venus Fly trap.

The aspect of the bog most easily observed, that is typical of the bog environment, are the domes outlining the humps of sphagnum moss (genus of moss in continuous growth).

During the summer season at the Natural Reserve Paluaccio, there are different activities and workshops organized for adults and children.