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SCENERY OF SWITZERLAND. 
CHAPTER XIX. 
THE RHINE. 
In previous chapters I have traced the great fold 
of Switzerland, not indeed from its commencement, 
but along the valley of Chamouni, over the Col de 
Balme, up the Rhone from Martigny to Obenvald, 
and over the Furka. It then forms the Urserenthal, 
and passing over the Oberalp, descends the Tavetsch 
and forms the valley of the Upper Rhine. 
To the east the direct route to the Rhine valley 
would be by the Pass da Tiarms, north of the 
Calmot. The road, however, rises by a series of 
zigzags and passes to the south. On crossing the 
watershed the glen of Tavetsch opens out. It has a 
length of about 5 km., and on the north presents 
two terraces, one about 60, the other 2 to 3 metres 
above the river. The valley below terminates in a 
narrow gorge near the village of Sedrun. Below the 
gorge is a second broad stretch of valley, that of 
Dissentis, which itself is again closed by a second 
gorge below. Under the enormous gravel deposits 
