In ancient times, after conquering the Ossola area, the Romans began a long process of providing the mountain slopes with mule tracks, with particular attention to routes at medium altitude so as to avoid the perilous pebbly riverbeds of torrents subject to frequent flooding.
Mule tracks originating from Roman times in the Ossola Valley are unequalled by any others anywhere in the Alps: large Beola stones, easy to find in the vicinity, were placed transversally to form paving across the whole width of the tracks. The Roman Road in Beura Cardezza is a splendid example of this method of construction, but it has another unique feature: given the conformation of the land, the slabs of Beola jut out by about 10 centimetres over the wall below them to limit any damage due to torrential rainfall.
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