A more thorough explanation:

Definition: Alta via is a term used in Law Latin to refer to a highway.

Example: The Alta Via dei Monti Liguri is a long-distance hiking trail in Italy that runs along the Ligurian Mountains.

The example illustrates how the term alta via is used to describe a specific type of highway, in this case, a hiking trail. The Alta Via dei Monti Liguri is a well-known example of such a highway, which is used by hikers to explore the Ligurian Mountains.