Castrin Pass, located inside a tunnel

Passo Castrin, also known as Hofmahdjoch, is a high mountain pass at an elevation of 1.781m (5,843ft) above the sea level, located in the Ortler Alps in South Tyrol, Italy.

Passo Castrin

The pass is located inisde a tunnel. The road is paved. It’s called Strada Provinciale 86. The tunnel was built in 1998. The tunnel pass is highest at the south entrance of the tunnel. The road is steep, hitting a 19.0% of gradient through some of the ramps.