Built in the late 1930s to serve a border fort, the Mangart road climbs to 2,055 m through the Julian Alps, making it Slovenia’s highest paved road.
A technical, vertiginous ascent
From around Bovec, via Log pod Mangartom, it’s roughly 16.5 km for 1,407 m of elevation gain, with ramps reaching 22% in places. The road winds through 17 hairpins and 5 rock-cut tunnels, with long balcony sections lacking any guardrail.
A road built for engineers more than racers
No major professional race has ever used the Mangart road: it remains primarily a demanding cyclotourism destination and amateur hillclimb, its fame resting on Slovenia’s record altitude and a spectacular route dating back to the 1930s, when it was built to serve a military fort at the saddle.
Getting the ride right
Front and rear lights make the tunnels easier to negotiate, where visibility drops sharply, while brake pads in good condition are essential to control the technical, tightly-hairpinned descent.
When to go
July to September only — the road stays closed the rest of the year due to snow, and access can be restricted at Log pod Mangartom.
Good to know
The road dead-ends at the saddle, on the edge of Triglav National Park, with views over the Mangart massif and, on clear days, across the border to the Italian peaks around Tarvisio.
