Wurzen Pass (Wurzenpass)

Short, steep border pass to Slovenia with sustained 18 percent ramps near Villach

The B109 climbs from the Gail valley near Riegersdorf up to the Wurzen Pass on the Slovenian border, a modest 1073m summit reached by a short but notably steep road with a sustained ramp around 18 percent after a double hairpin. It is one of the busiest car-friendly crossings into Slovenia, so the climb is short on switchbacks but high on gradient. Cold-war bunkers line the route as a now-public museum. Mind the sustained 18 percent ramp, the heavy summer border traffic, and the tight double hairpin at the foot of the steep section.