Rail and cable-car facilities have been built to make some of the summits in the area more accessible. The Gornergrat railway, reaching a record altitude of 3,100 metres, was inaugurated in 1898. Areas served by cable car are the Unterrothorn and the Klein Matterhorn (Little Matterhorn) (3,883 m, highest transportation system in Europe). The Hörnli Hut (3,260 m), which is the start of the normal route via the Hörnli ridge, is easily accessible from Schwarzsee (2,600 m) and is also frequented by hikers. The Zermatt and Breuil-Cervinia resorts function as separate ski resort all year round and are connected by skilifts over the Theodul Pass. In 2015 it was expected that there would be constructed a cable car link between Testa Grigia (or Tête grise) and Klein Matterhorn. It will finally provide a link between the Swiss and Italian side of the Matterhorn.