As described in guidebook Crag Climbs in Chamonix, Burnier, PF. and Potard, D., edition 7, printed 2015, published by Guide Vamos. From top of Pranplaz lift (the Brevent mid-station), go up track 100m then drop down left for 300m. P1: 35m, 5b, slab. P2: 30m, 5b, short wall. P3: 45m, 5b, steeper wall. P4: 25m, 5a, traverse rightwards. P5: 35m, 5c+. P6: 25m, 5a. P7: 40m, 3b. P8: 35m, 4a. P9: 30m, horizontal traverse. P10: 35m, 5b, final wall. P11: 35m, 3b. Bolted.