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(ō`bər-älp), Alpine pass, 6,733 ft (2,052 m) high, between Grisons and Uri cantons, S central Switzerland. Oberalpsee, a small lake, is nearby, and the Alpine peak Oberalpstock, 10,926 ft (3,330 m) high, is northeast of the pass.
There are more than 350-kilometres of footpaths around the combined resorts of Disentis Sedrun, including a walk to the source of the Rhine and, for seasoned hikers, the 100-kilometre Senda Sursilvana path from the Oberalp Pass to Chur.
Passengers quickly fill four panoramic carriages for a seven-hours tour past waterfalls and deep ravines, looping into the Engadine valley, through the famed Albula Tunnel and showcasing Swiss engineering at its best--91 tunnels, 291 bridges and the 2033-metre-high Oberalp Pass.