There are a series of couloirs that run along the ridge of the Fond Blanc. Accessed from the top of the Clocheret chair lift, hike straight up for maybe 20 mins, once you reach to top of the bowl with Arc 1950 in front of you, you will see the ridgeline reach along the left hand side of your view and this is where you want to be heading. It can be a rocky hike along this ridge and maybe takes around 30 mins to walk the full length. As you walk along the ridge you will see a series of couloirs dropping away to your left, these are the Comborciere couloirs. They range in steepness and narrowness and the entry points are usually a little sketchy due to cornices so be careful picking your entry point. As a rule of thumb the steepness ranges from the steepest couloir being the first ones you walk past and the more mellow ones being a further hike along the ridgeline.