Analysing the Regione hydrography databases, we note 59 different types (river, creek, stream etc.). There is an interesting pattern showing in relation to fosso (creek), for which different names are used south of Pisa (botro, in green) and in the Florence/Siena area (borro, in red) . For more details: info@pibinko.org.
In the Jan. 24, 2020, episode of Geo (RAI 3), a report on the Canaloni and Val di Farma wilderness was aired. This goes roughly from 1h7′ to 1h14′.
If you are reading this article from Italy, you may see it from the RAI Play website (click here qui)
For more news about the Farma Valley on sito pibinko.org, please follow this link