The connection to the valley floor has been viable since 1505 thanks to the Ambria Bridge, built by the municipalities of Bracca and Spino because of the lack of connections to the Valley due to the flood of 1493, which destroyed others. The present bridge is a 1980s remake of a bridge well built in 1778. The ravine road, the 2.5-kilometer-long rocky gorge carved over the centuries by the Ambria stream, dates from 1882 and required a decade of work.
A striking phenomenon to be admired on cold winter days is galaverna with stalactites: anything crystallizes, creating a surreal, fairy-tale landscape.
In 1596 Da Lezze wrote. “The Val Serina is situated in stony and cold place in very high mountains for long,[...]. The country is stony and barren, not gathering grains for three months of the year, so that most of the people abandon their homeland et go out into the world. Those who remain attend to livestock et to lands, woods et to coals et the women spin stame.”.
