signorellil - Jun 6, 2005 3:15 pm - Voted 10/10
Little lesson on geology...Ok, another fine picture from Olivier. This is Pic Luigi Amedeo(4470m) , the most remote and difficult to reach among the "official" 4000s of the Alps (it's also probably the least climbed). This pic shows quite dramatically how you may find in the same mountain completely different rock and completely different conditions - the lower part (red-orange rock) is made of sound protogine granite, for whom Mt. Blanc is quite famous. The upper part (black / grey) is made os schists, horribly broken rock that's unfortunately common in the western part of the massif. For this reasons, most of the routes on the Freney and Brouillard face of MB (those on the "pillars" - the red rock at the bottom of the picture is the top of the Left Pillar of Brouillard) end where the granite ends. However - as it's very evident from this picture, there's still a lot to climb until the top of the ridge and the summit of MB... and so, it's entirely another thing doing "the pillars" until the real summit...
End of the boring lesson
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