Zoncolan is one of the most challenging climbs in road cycling. The ascent from Ovaro has been used regularly in the Giro d'Italia in recent years and, without fail, provides great drama
and incident.
The heart of the climb is the 6km section after the village of Liariis, which averages (yes, averages!) nearly 15% gradient. The good news is that the climb is fairly consistent in its steepness, and the gradient rarely
gets above 18% for significant periods. The climb is marked with pictures of great cyclists, so look out for Miguel Indurain, whose sign marks the end of the hellish steep section.
From here the climb continues through some relatively flat tunnels, before a final steep ascent to the natural amphitheatre which forms the pass.
Zoncolan is a great climb and is a worthy challenge to undertake for well trained cycle tourists. In our opinion though, it is not harder than its Spanish cousin
Angliru, the inconsistency and steepest sections of the latter, make it a touch more challenging.
Zoncolan is best climbed from May to October but is often open much longer.
The pictures of great cyclists from the past line the climb
Roads & Traffic
The road surface is in excellent condition throughout and there is little traffic on the climb.
The top of the climb has great views over the Carnic Alps
Alternative Routes
This is the classic side, but Zoncolan can also be climbed from Sutrio
and Priola.
Italy
Spain
France