Analysing terrain data
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The exposure grade describes the potential consequences of falling or slipping off the path.
Low Exposure: The path is on completely flat land and potential injury is limited to falling over.
Medium Exposure: The trail contains some obstacles such as outcroppings and rock which could cause injury.
High Exposure: Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.
Extreme Exposure: Some trail sections are extremely exposed where falling will almost certainly result in serious injury or death.
700m, AD+, III Dufourspitze is the principal peak of the Monte Rosa massif.
It is the highest point in Switzerland and after the Mont Blanc it is the second highest massif in the Alps.
The Cresta Rey splits the steep south face of the Dufourspitze and leads directly to the summit cross.
It was first climbed in 1874, by Eustace Hulton guided by Joseph Moser and Peter Rubi.
Though it looks imposing from a distance the spur is composed of reassuring blocky gneiss and is remarkably pleasant to climb.
Linking the Cresta Rey with a descent of the south-east ridge and over the Zumsteinspitze makes for an outstanding traverse as this peak.
The south-east ridge, though less technical than the Cresta Rey, is far more varied and has rocky slabs, delicate mixed terrain and narrow snow crests all hanging above the precipitous east face.