Furlo gorge - Acqualagna Travelling along the Flaminian Way from Fano towards Rome, we arrive at the Furlo Tunnel, at the foot of the Furlo Gorge. The Gorge cuts through what was once a single mass of rock. Over millions of years the River Candigliano has driven a path through it, leaving a deep fissure in the rock. This is but one reason why the mountains of this area offer so many interesting things to see. Above all is the richness of its nature. Furlo is the home of many wild animals of great ecological importance. (including the wolf, golden eagle, Montagu's harrier (circus pygargus), pellegrin falcon, sparrow hawk (accipiter nisus), Cornish chough (pyrrhocorax pyrrhocorax) and wall creeper (tichodroma muraria)) as well as plants of botanical interest (including the moehringa papulosa and salix apenninica). In addition, there are 2500 hectares of state owned forest and two plant protection areas where natural habitats are in the process of development. Against this magnificent natural background it is possible to trace back the natural history of the area which is plainly visible in the limestone cliffs of the gorge. Among many other interesting aspects of the area are the ancient farming traditions out of which the more recent culinary culture of the truffle has grown. The mountains of Furlo and nearby Acqualagna are among the main areas in central Italy for growing the black truffle (tartufo nero) and white truffle (tartufo bianco pregiato).