The World of Waterfalls has been to this waterfall, which you can read about here.

If you take a cable car from Trento (“Funivia Trento-Sardagna”) then you end up in Sardagna, a small town on the top of the hill. Once, I was walking around Sardagna and found a very fast-flowing river running through the town. I soon realized that it must be the source of the waterfall which can be seen from Trento.