[3] Bassano in Teverina lies on the border between Lazio and Umbria and is situated in a position which overlooks the Tiber Valley, on the last offshoots north of the Cimini Hills.

The town center of Bassano in Teverina arises on a tuff spur set in a slightly rearward position compared to the Tiber Valley, of which it overlooks one part.

Today the lake is partially dry and is fed by sulphurous springs which, along with marsh vegetation and mineral sediments, create masses of a certain size that must have suggested the idea of the "floating islands" mentioned by some Latin authors.

The site was recovered between the ninth and tenth centuries when, under the threat of the Hungarians, it took importance again for the easily defensible location thanks to its proximity to the Via Amerina, an old Roman road still in use at that time.

According to the tradition, the Countess Matilda of Canossa, the owner of large properties in Viterbo, donated Bassano's castle and other places in the area to Pope Gregory VII in 1070.

On 25 November 1943, during the Second World War, it was severely damaged by a tremendous explosion that shook the area: a German munition loaded train parked below the station blew up, causing a windage that destroyed roofs and walls of the town's ancient hamlet, forcing people to abandon it and making it uninhabitable for many decades.