I seem to remember, that Le Tour has gone up to Alpe d' Huez from Jean-de-Maurienne, via the Col de Glandon. This road is definitely closed and will be till maybe May. However as above contributors have said the road up from Le Bourg d'Oisans is nearly always open. Patrickrd, if you can ride up there, in less than twice the time it took Marco The Pirate, to ride up there, when I watched him fly passed me, in the 1997 Tour. Then I'll send you a quid. Good luck. IT IS VERY HARD TO RACE UP THERE.

HeatherM, Many thanks for the info on the Tour of Romandie, I'll be there to cheer on Lance and a few others.