
Zwischbergenpass
Switzerland • 3268 m
Historique
- Passage pratiqué de longue date.
Bibliographie
- Der Portiengrat par Melchior Ulrich, Mittheilungen der Naturforschende Gesellschaft in Zürich, vol. 2, 1951, no59, p.308-313.

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- Weather forecast
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- Race book
- Creation of tracks
- Topographic map (including IGN)




