In reply to Pomeroy:
I climbed it about 3 weeks ago. It was almost entirely a dry glacier, a bit of snow cover at the margins but none on the normal route up which is towards the left hand side as you look uphill. On the RH side the glacier extends a lot lower and has some snow cover.
On our ascent we saw only 2 crevasses which were not more than a foot wide and only a few feet deep, nobody was roping up and there was no need to, there are no seracs anymore as mentioned in our guidebook. We wore crampons because we had them but a bloke near us was wearing some sort of micro spikes without any trouble. We carried axes but others were just using trekking poles.
Obviously there may have been snowfall more recently but there still won't be any crevasses worth speaking of.
The most challenging part of the ascent is the drive up from Gavarnie to the Barrage d'Ossoue, in a sh*t is my ground clearance enough to get over this or am I going to trash my sump kind of way. It's doable with 2WD but exciting!
Don't know where you're planning to stay but a few minutes before where the path to the glacier diverges from the path to the hut there are 3 of the caves that Henry Russell had excavated which you can bivi in and there's another good bivi spot straight opposite.
Post edited at 21:43