SOIUSA Classification of Italian Alps
The traditional classification system according to the Alpine Italian geography, formulated in 1924 during the Italian Geographical Congress IX and made official in 1926, has recently been surpassed by SOIUSA (Unified System Division International Alpine Orography), submitted in 2005 and by some well-publicized magazines specialist.
This new division, acknowledged at international level, assign a different extension, several limitations and a new internal division also to the foothills.
Lessini winter view of the mountains, foothills in Veneto
The SOIUSA identifies the natural boundary between the Alps proper and the foothills of the Alps, located to the south of it, in the so-called Line Insubria, an almost continuous system of fractures which, starting from the area north of Biella and continuing in a north- cut lengthwise east Alpine system by dividing the Alps from the main South-Eastern Alps (also known as Southern Limestone Alps).
According to the SOIUSA the Alps are divided into sections, each of which belongs to a sector of the Alpine system:
* North-Western Alps
- Pre Luganesi (Lombard pre-Alps and Western Alps in the traditional classification Varese)
* South-Eastern Alps
- Bergamo Alps (Central Alps of Lombardy)
- Pre and Gardesane Brescia (Lombardy Alps Eastern)
- Venetian Pre-Alps (Alps and Pre Vicenza Belluno)
- Julian Alps
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