The pass sits on the watershed divide between the Arno river valley to the south and the Bidente river valley to the north.
It is one of the highest drivable road passes in the Tuscan-Emilian Apennine range.
The area is part of the Sasso Fratino Integral Nature Reserve, one of the oldest protected forests in Europe and a UNESCO World Heritage site.
Passo della Calla is a key observation point for migratory birds and wolves, which are protected within the adjacent national park.
The regional border between Tuscany and Emilia-Romagna runs exactly across the mountain pass.
Calla Pass, known locally as Passo della Calla, is a high mountain pass situated at an elevation of 1,296 meters in the Tuscan-Emilian Apennines. It serves as a natural boundary separating the regions of Tuscany and Emilia-Romagna. The pass is positioned within the territory of the Foreste Casentinesi, Monte Falterona, Campigna National Park. It acts as a primary connection point between the municipalities of Pratovecchio Stia in the province of Arezzo and Santa Sofia in the province of Forlì-Cesena. The area is characterized by dense beech and fir forests typical of the protected park environment. It is a well-known hub for hikers, cyclists, and motorcyclists navigating the winding SP310 road. During winter months, the high altitude often results in snow accumulation, necessitating caution for road users. The location serves as a critical junction for several long-distance trekking trails, including sections of the Alta Via dei Parchi.
The border sign indicating the transition between the Tuscany and Emilia-Romagna regions.
Check local road reports for snow closures if visiting between late autumn and early spring.
Bring layers even in summer, as temperatures at 1,300 meters are significantly cooler than in the valley towns.
Carry offline GPS maps as cellular signal is inconsistent throughout the dense forest surrounding the pass.
Attempting to travel the pass with heavy vehicles or trailers is ill-advised due to the extremely tight, narrow, and technical hairpin turns.
The pass road may be periodically restricted or closed to traffic during heavy snowstorms or severe ice events in winter.
Practice 'Leave No Trace' principles due to the sensitive nature of the surrounding National Park.
