31. At the top of the couloir , follow the ridge to the west and then the south to the summit. 32. The last part to the summit leads through the narrow " Reiss couloir " until the Lhotse main peak is reached. 33. Perhaps most noteworthy, in April 2006 Doug Coombs died while trying to save a friend in the Couloir de Polichinelle. 34. Fatalities also occur because climbers make the mistake of descending the couloir ( gulley ) between the summit and Challenger Point. 35. A couloir may be a seam, scar, or fissure, or vertical crevasse in an otherwise solid mountain mass. 36. In 2001, young French snowboarder Marco Siffredi succeeded in the first snowboard descent of Everest by using the Norton Couloir . 37. There are a number of different routes, the most popular being Heftye's renne ( Heftye's couloir ). 38. Extreme skiing started early in the Ortler mountains, with descending the Sch�ck couloir in 1971 and the Minnigerode couloir in 1975. 39. Extreme skiing started early in the Ortler mountains, with descending the Sch�ck couloir in 1971 and the Minnigerode couloir in 1975. 40. Around the left of the large rock outcropping ( looking at the mountain ) is the lesser known S & S Couloir .
