In reply to Carless:
Ah, thanks for the plug! No, it's not in my topo - I only equipped it in the last few years. It's not in either Aigs Rouges topos either. The only one it appears in is the latest Chamonix Cragging book by François Burnier. You can find this everywhere in Chamonix - Maison de la Presse or Snells etc.
@SFrancis: If you're set on Pylone due to lack of time and aren't considering anywhere else and don't want to fork out for the topo, I can email you my original sketch topo of it. Or in fact the list of routes is here in the database, halfway down the middle column. They go L > R so you don't really need a topo.
Barberine Gietroz It's good and sunny and dries quite fast.