In reply to mypyrex:
> Yes, I've watched several clips. I would imagine it's quite scary just witnessing it from the sides of the couloir, let alone whilst crossing it. Is there anyway of judging the right moment to cross?
Yep cross the couloir very early in the morning when it is frozen into submission! My buddy and I crossed the couloir from the Tete Rousse at around 2.30am (@ 3.05 in the following vid) and it was all quiet:
However by the time we made the return crossing at around 12 noon there was a lot of stonefall coming down, mostly due to the large number of parties (guided and unguided) heading up to the Gouter Refuge and kicking stuff off from higher up the ridge! So we crossed/ran very quickly one at a time, whilst the other kept a look out, and it was quite a relief to get out of the danger zone...
Cheers
Dave