Stage 20 of Giro d’Italia 2014 finished atop Monte Zoncolan. It is widely regarded as one of the most difficult climbs in Europe: the Zoncolan has been compared with Vuelta a España’s El Angliru, in the Spanish region of Asturias. The steepest, 23.6% pitch of the Angliru is very short however, being part of a kilometer stretch that averages “only” 17.2 percent – while the Zoncolan has a kilometer of nearly 20%.
The “thing” is situated in Friuli Venezia Giulia and belongs to the Alps. Starting from Ovaro, the Monte Zoncolan ascent is 10.5 km long. Over this distance, you climb 1210 vertical meters. The average percentage thus is 11.5%.