Tagliamento river, north eastern Italy - Extraordinary semi-dry river bed. When water does appear it is crystal clear having been naturally filtered by the sand and gravel of the river bed. Most of the river water is captured by dams and used for intensive crop irrigation.
The Tagliamento river in north-east Italy, flows from the Alps to the Adriatic Sea at a point between Trieste and Venice. The source is in the Mauria Pass, on the border between the regions of Veneto and Friuli-Venezia Giulia.  It flows into the Gulf of Venice between Lignano Sabbiadoro and Bibione.
San Vito al Tagliamento, July 2015